Marshmallow Crunch Brownie Bars


I had originally planned on using the title “Marshmallow Chocolate & Peanut Butter Crunch Brownie Bars”. That seems mighty long, but is truly the best description of these bars, and they are absolutely phenomenal. Imagine this: rich, decadent brownies. Topped with ooey, gooey marshmallows. Topped again with chocolate-peanut butter-Rice Krispy deliciousness. Folks, you just can’t get much better than these bars. Part brownie, part s’more, and part Rice Krispy treat. It’s everything you know and love, baked up into one amazing dessert.


It seems insane to think that there is any way that you can improve on these bars, but I do think there is one thing I will do differently next time: I plan on cutting the quantities for the brownie layer in half. As they are, the brownie layer is about twice as thick as the marshmallow and crisp layers, and I think these would be even more awesome if all of the layers were about equal in size. I also think that taking the chocolate/peanut butter/Rice Krispy topping and using it to make an entire pan of Chocolate-Peanut Butter Rice Krispy Treats would be heavenly. Stay tuned, because that will likely be happening very, very soon. I do have more Rice Krispies left over and, well, that seems like a perfect way to use them up!

You’ll want to hurry up and make these immediately. All of your family and friends will love you forever.

More brownies with a twist:
Chipster-Topped Brownies
Cookies and Cream Cheesecake Brownies
Samoas Brownies

1 year ago: Homemade Pierogies
2 years ago: Outrageous Brownies

Marshmallow Crunch Brownie Bars

Yield: 24 bars

Prep Time: 30 minutes

Cook Time: 25 to 30 minutes

Total Time: 1 hour


For the Brownie Base:
4 ounces unsweetened chocolate
2/3 cup unsalted butter
1¼ cups semisweet chocolate chips, divided
1-1/3 cups all-purpose flour
1 teaspoon baking powder
½ teaspoon salt
4 large eggs, at room temperature
2 cups granulated sugar
2 teaspoons vanilla extract

For the Toppings:
1 bag (10½ ounces) miniature marshmallows
1½ cups milk chocolate chips
1 cup smooth peanut butter (don't use natural peanut butter)
1 Tablespoon unsalted butter
1½ cups Rice Krispies cereal


1. Preheat the oven to 350 degrees F. Grease a 9x13-inch pan.

2. For the brownies: In a medium saucepan, melt the unsweetened chocolate, butter and ¾ cup of the semisweet chocolate chips over medium heat. Stir occasionally while melting. Set aside and cool for 5 minutes.

3. In a medium bowl sift the flour, baking powder and salt. Set aside. In a large bowl , whisk the eggs thoroughly. Add the sugar and vanilla and whisk until well blended. Stir the melted ingredients into the egg mixture, mixing well. Stir in the dry sifted ingredients and mix well. Fold in the remaining ½ cup semisweet chocolate chips.

4. Pour the batter into the prepared pan, smoothing the surface with a spatula. Bake for 25 to 30 minutes, or until a cake tester inserted into the corner of of the pan comes out with moist crumbs.

5. Remove the brownies from the oven and immediately sprinkle the marshmallows over them. Return the pan to the oven for 3 more minutes.

6. Meanwhile, place the milk chocolate chips, peanut butter, and tablespoon of butter in a medium saucepan. Melt over low heat, stirring constantly, until completely melted. Remove from heat, add the Rice Krispies and mix well. Allow to cool for 3 minutes.

7. Spread the mixture evenly over the marshmallow layer. Refrigerate until chilled before cutting.

(Adapted from Culinary Concoctions by Peabody; originally from Buttercup Bakes at Home by Jennifer Appel)


147 Responses to “Marshmallow Crunch Brownie Bars”

  1. christina on October 5, 2009 at 12:35 pm

    This is a magnificently glamorous take on rice krispie treats!


  2. Liz Brooks on October 5, 2009 at 12:38 pm

    Yum, these look great!


  3. Eliana on October 5, 2009 at 1:47 pm

    These look amazing Michelle!!!


  4. Maria on October 5, 2009 at 3:01 pm

    I can always count on you for a tasty sweet treat!


  5. Angela@spinachtiger on October 5, 2009 at 3:01 pm

    I don’t think it can get better than these.


  6. The Cooking Bride on October 5, 2009 at 3:23 pm

    Just stumbled across your blog. Those brownies look awesome. Just added you to my reader list – I look forward to following!


  7. Soma on October 5, 2009 at 4:21 pm

    I am so bad in baking…:-( The marshmallows look fabulous in the bars. if my DD saw these, she would do anything for me to make these for her:)


  8. amanda @ fake ginger on October 5, 2009 at 7:06 pm

    Those look ridiculously good! Definitely saving this recipe. I know my husband would fall in love with me all over again if I made them!


  9. Deanna@marzipan on October 5, 2009 at 7:07 pm

    These are going in my must-make-very-soon file! Looks absolutely delicious!


  10. sherri on October 5, 2009 at 7:23 pm

    I’m sold. They look scrumptious!


  11. Smartkahuna on October 5, 2009 at 7:35 pm

    ummmm, these look amazing! I just showed the picture to the Wee Kahunas and they did a happy tummy dance… 🙂


  12. shelly (cookies and cups) on October 5, 2009 at 7:54 pm

    ok, seriously?!?! are you trying to kill me here? these sound so good!!


  13. nicole on October 5, 2009 at 9:00 pm

    WOW! These looks AH-MAZING!!


  14. Pam on October 5, 2009 at 10:10 pm



  15. Jackie on October 6, 2009 at 12:52 am


    I was wondering could you help me with some of the measurements for the brownie layer, you recommend halving the brownie layer. For the butter would it be 5 Tablespoons of butter, if using 1/3 cup. Also for the flour, 11/3 cups, what would be the measurement for half of 11/3 cup of flour. Thank You.


  16. chocolate shavings on October 6, 2009 at 9:15 am

    The layers on those bars look amazing!


  17. stephchows on October 6, 2009 at 10:53 am

    oh wow that does sound like all the best desserts piled into one!


  18. Carla on October 6, 2009 at 12:39 pm

    I know what I’m making when I buy a box of Rice Krispies!


  19. TammyJo Eckhart, PhD on October 6, 2009 at 12:39 pm

    I agree with a few other comments that the topping could be used on a large number of goods. But since I have a soft spot in my heart for brownies, I have them in place of cake on my birthday, I really liked this combination.


  20. Jessie on October 6, 2009 at 1:38 pm

    mmmm I wish I could bake everyday and make so many wonderful treats like you do!


  21. Michelle on October 6, 2009 at 4:27 pm

    Hi Jackie – half of 1 1/3 cups of flour would be approximately 1/2 cup + 2 tablespoons flour. Or, alternately (what I would do), if you have a kitchen scale I would weight the 1 1/3 cups in grams or ounces, and then halve that amount.


  22. Mardi @eatlivetravelwrite on October 6, 2009 at 8:36 pm

    (wipes drool off keyboard as she tries to type…)



  23. Jen @ My Kitchen Addiction on October 6, 2009 at 10:31 pm

    These look incredible! Adding these to my must-bake list!


  24. Katie on October 7, 2009 at 11:16 am

    I love it! This looks so decadent and down right yummy!


  25. Stephanie on October 7, 2009 at 11:18 am

    Sounds fabulous! Great idea to make the layers even and even better to make the top layer all by itself!!


  26. COZY KITCHEN BY THE SEA on October 7, 2009 at 1:32 pm

    OOOOOOO HELLO !!!!!!!!!!!!!!!!!!!!!
    YUMMY !!


  27. Danielle on October 7, 2009 at 6:50 pm

    You sure do know how to make me smile! Yet another recipe I am dying to make!


  28. Chris on October 7, 2009 at 9:59 pm

    I’d probably like this more with more nuts and less marchmallow.


  29. Ashley on October 8, 2009 at 12:58 am

    Mmm these are one of my favourite bars!! So delicious. I don’t mind the thick brownie layer!


  30. LINA@mylifeisyummy on October 8, 2009 at 1:04 am

    wow, what a great combination. cruncy and chewy! yum!


  31. plovesp on October 8, 2009 at 1:55 am

    couldnt find marshmallows, and i had to change the quantity of ingredients and considering my low level cooking skills, it was great.. thx for the good blog beb 🙂


  32. Pamela on October 8, 2009 at 8:09 am

    Yum! These look delish; they’re definitely going in the bag as a “must make”! 🙂


  33. Tatiyana on October 8, 2009 at 3:53 pm

    Wow, these look fantastic! I know what I’m making this weekend for my family gathering. Everyone is going to love me for them being so delicious and hate me for them being so sinful! Thanks for the great post:)


  34. Dawn on October 8, 2009 at 10:26 pm

    It was the picture of these treats that had me grabbing the book “Buttercup Bakes at Home” from the store shelf! But, only after reading your blog did I have the umph to make them for the first time. Thank you! I completely agree, the brownie part is so thick – will follow your lead on the halving. Great pictures! Great Blog! 🙂


  35. Bonnie's Best Recipes on October 9, 2009 at 2:32 pm

    What an amazing combination of textures! Great job.


  36. Hannah on October 9, 2009 at 8:16 pm

    Wow, those look absolutely delicious.


  37. Simply Life on October 10, 2009 at 6:18 pm

    WOW. Those look AMAZING!


  38. Katrina on October 11, 2009 at 9:51 pm

    Heavenly! I recently posted some yummy very mallowy Krispy treats with caramel and chocolate. So good!


  39. Chaya on October 14, 2009 at 4:27 am

    So far, I have done very well with your recipes. This is another, I want to make.


  40. Sol on October 14, 2009 at 9:39 am

    hmmmmmmmm looks and sounds delicious so it probley is!!!!


  41. Avanika (Yumsilicious Bakes) on October 14, 2009 at 2:27 pm

    Omg these look sooo good! All the best things rolled into one! How do you come up with such stuff! I’m going to try this soon!!


  42. ashley on October 14, 2009 at 10:24 pm

    ohhh these look so delicious!


  43. Michelle on October 18, 2009 at 11:42 am

    Ohhhh… if only I had Rice Krispies in the house….

    These look WONDERFUL!!


  44. tiina on October 28, 2009 at 9:17 am

    These look perfect for a Halloween party! Thanks for sharing this great recipe!


  45. Lizzy on November 26, 2009 at 9:44 am

    These are as amazing as they sound! I made them without the marshmallow and they were still some of the most delectable treats I have ever eaten! I am making them today for the Thanksgiving crowd- they are definitely something to be thankful for!


  46. Christine on December 15, 2009 at 10:59 am

    i just made this recipe last night. While i was skeptical, this really ROCKS! It is super sweet and rich….i made a couple of changes. I used 60% bittersweet chocolate for the brownie base (decadent) and semisweet chocolate for the topping. This combo was sweet enough…i can’t imagine using semi and milk choc! The bittersweet choc adds some depth and slight complexity. Heck the brownie part alone is delicious. Thanks for sharing this recipe. This is truly a keeper.


  47. gwyn on December 17, 2009 at 10:36 am

    I made these a few days ago & finally sent the rest to work with my husband so i wouldn’t gain 10 pounds! I do think that the marshmallow was too thick & think i’d like to figure out how to double that yummy rice crispy/chocolate topping but the pan was really full as it was. Maybe by halving the brownie base i can do that. The brownie layer was so rich & so yummy – like fudge & brownie mixed together! YUM!


  48. Jacqueline on January 9, 2010 at 9:02 pm

    Wow, these are amazing! I halved the brownie layer as you suggested, and they are just sinful! I brought them into work, and my coworkers who NEVER eats anything I bring in even had one, haha! Seriously a great recipe, thank you SO MUCH for sharing!


  49. Megan on February 10, 2010 at 1:55 pm

    So awesome!! I made these and brought them into work. People said they would PAY me to bring them in again! I also had given a few to my neighbors and they were asking about them the same night! So delish!


  50. Applecore on March 5, 2010 at 5:30 am

    Wow, these are amazing! Thank you for this recipe in particular and your lovely blog in general :3 Have posted about these on my blog, Two Days Slow.


  51. Lisa on March 24, 2010 at 11:12 pm

    OMG!!! Made these for my son – he’s home from college. He says they are the best brownies I’ve ever made. I didn’t believe him so I tried one, then two, then….well you know the rest!!!! Worth every extra mile I’ll have to run tomorrow!!!


  52. Amanda on May 27, 2010 at 11:35 am

    Oh my word, these look so incredible. Must get marshmallows stat!


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  54. Olivia on June 15, 2010 at 9:17 am

    I made these when you first posted them and my 3 daughters have been begging me to make them again! Today just might be the day!


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  57. Mandie on July 30, 2010 at 5:46 am

    My Gramma Gin (her name is Virginia) makes these.This is absolutely my very favorite way to eat a brownie. I’m so glad you posted a recipe, because I had no idea how my gramma made these! Now I can make them for my daughter. 🙂


  58. Stacy Baker on August 6, 2010 at 6:07 pm

    OMG!!!!! I made these yesterday, but I will admit that because I was short on time, I used a boxed brownie mix. Otherwise, I followed the directions and waited until they were thoroughly chilled before cutting and serving. The brownie crust was hard and the marshmallow filling was too chewy/stretchy. Good, but not great. Since then, however, I have discovered that if you zap them in the microwave just before eating, they are TO DIE FOR!!! YUMMMMM!!!! The brownie is soft and the marshmallow is nice and gooey! I will definitely make these again but serve warm.

    FYI: The author commented that she would reduce the thickness of the brownie layer the next time around. I used a box and the brownie layer was slightly shorter than the other two layers combined. Definitely less brownie than shown in the posted pic.


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  60. Stiffler on October 5, 2010 at 5:44 pm

    i want to make these


  61. Pamela on October 6, 2010 at 10:10 am

    We were invited to a friend’s for dinner, and I took these for a dessert. They were definitely a hit, and I was just glad I had taken them somewhere so I didn’t eat them all myself!! Thanks 🙂


    • Michelle on October 8th, 2010 at 10:02 am

      Thanks for the review Pamela, thrilled that you loved these! And I agree – these are dangerous to have sitting around!


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  63. Jane on October 10, 2010 at 5:23 pm

    I have made these twice this weekend, once for a church bake sale and then again today for my husband to take to work with him. The problem I have is that when I make the rice krispie layer, I can’t get it to spead over the marshmallow layer. Am I supposed to let the marshmallow cool first? They were fantastic with the marshmallow and peanut butter layers mixed together, but they weren’t as pretty as yours.

    I’m not complaining, the taste is out of this world, just wondered what I’m doing wrong.


    • Michelle on October 10th, 2010 at 6:32 pm

      Jane, So happy you loved these! Admittedly, it’s not smooth sailing as far as spreading the topping – I just use an offset spatula to get it as evenly spread as possible. I usually let the marshmallows sit for about 5 minutes or so out of the oven before doing the topping.


    • April on November 23rd, 2010 at 6:42 pm

      I just made these and had the same issue – they look like crap, but they taste fantastic! LOL. I think I will maybe leave the rice krispies out next time and it would be perhaps easier to spread.


      • Michelle on November 23rd, 2010 at 10:10 pm

        Haha! The rice krispies are soooo good though! Maybe double the topping so it’s easier to spread?


    • Stephanie on October 19th, 2011 at 11:27 pm

      I had the same issue as well but I just use a spoon to swirl the two layers to create a marbling effect so they wouldn’t look so odd. Good to know about the cooling beforehand for the next time!!


  64. Stiffler on November 1, 2010 at 10:59 pm

    I made these yesterday – very tasty.
    Took them to work and coworkers seemed to like. although the weight watching point counters were cutting them into teeny tiny pieces to eat them.


    • Stiffler on November 1st, 2010 at 11:02 pm

      that’s teeny tiny pieces they could split.


  65. Rhondi on December 10, 2010 at 11:13 am

    I just made these delicious little treats for my daughter’s friends and my hubby’s co-workers. They were a huge hit. Several people said they will be making them this weekend. I used crunchy peanut butter since I was out of creamy, and they were still really good. I’m planning on making a few of your other treats during the holidays too.


    • Michelle on December 10th, 2010 at 2:35 pm

      I think crunchy peanut butter would be great in this! Love that adaptation!


  66. Alyssa on December 15, 2010 at 10:56 pm

    These look amazing! I’m planning on making them for my company’s holiday party!! I think I’m going to cut the brownie recipe in half like you suggest – would you also cut down on the baking time then?


    • Michelle on December 16th, 2010 at 3:17 pm

      Hi Alyssa, Yes, I would start checking at 10 minutes since you’ll have a thinner brownie base and don’t want to overbake. Enjoy!


  67. Brittany on December 18, 2010 at 11:57 pm

    I just made these for a holiday treat party, but I used the baked brownie recipe that you posted a few weeks ago instead of this recipe. So excited to try them!


  68. Jessica on January 6, 2011 at 4:34 pm

    Oh my gosh! I just stumbled across your site and saw this while I was browsing around. When I was in college I made brownies from a box and noticed a similar recipe on the side of it (only using the boxed brownies of course) and decided to try it. Definitely one of the best flavor combos I’ve had! Everyone always loves them. I always had to add extra marshmallows to their recipe because it was never enough, but yours looks just right! Definitely trying these next time I’m in a brownie mode. I’m off to try the Chocolate Chip Oatmeal Peanut butter cookies tonight. 😉


  69. Sasha on January 18, 2011 at 12:40 am

    I just made these for my boyfriend and 4 of my guy friends – they LOVED it. It is so rich and satisfying… they all eat a LOT and could only handle one piece each haha. Thanks for the recipe! PS I love your site and check for new recipes from you almost daily!


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  72. Cat on February 17, 2011 at 4:23 pm

    Michelle, I’ve made a very similar recipe (the brownie recipe is slightly different.) These are awesome!! Wanted to tell you about a variation I have made, which might appeal to others. My son loves chocolate, but isn’t a marshmallow fan. I have replaced the marshmallow with a bag of caramels, melted with 1/4 cup half-and-half. I may even like that better. But hey, I wouldn’t turn down either!

    As for spreading the chocolate/peanut butter topping, as someone mentioned having difficulty with, I find it easiest to wait about 5 minutes, then put small dabs of it (maybe about 1 tsp to 1 TB – not necessary to be precise) over the entire surface, not being too particular – just dropping it all over quickly) and, using the offset spatula like you mentioned, then spread the stuff. When you only have to spread a tiny area to meet up with the next, it’s much easier to do.


    • tiffany on February 22nd, 2011 at 1:24 am

      i added some shortening to it to help thin it out a bit… def. works i do that in case im melting chocolate and it gets stiff and unmanageable, works like a charm


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  74. rachel on February 22, 2011 at 12:07 am

    just made these!! they are so yummy and chocolatey and the brownie is so gorgeous and dense – my favourite kind. i made it on the weekend and 4 people have asked for the recipe so far im definatly gonna pass it (and your website) onto them! thanks!!


  75. tiffany on February 22, 2011 at 1:23 am

    just made these tonight and everyone thinks they are a hit! Def. going into my recipe box


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  77. teresa on June 28, 2011 at 11:16 am

    Making these for company this weekend!
    Can’t wait!
    These look luscious!
    Thanks for so many great recipes!
    Hugs from Bainbridge!


  78. Christina on July 5, 2011 at 11:03 pm

    Wow. These looked too good to wait even a day to try…so I did! I would only use milk chocolate if I didn’t like the recipient, so I made these with bittersweet choc for the brownie base and semi-sweet for the krispie topping. Also, I used the Skippy no stir natural peanut butter. They came out lovely and the top layer was still liquid when I poured it onto the marshmellows so no problem there…but dang were they SWEET. I could hardly take a third bite. (And I’m a serious chocoholic.) I would absolutely use bittersweet or dark choc for both the brownie and krispy layer next time. Thanks for the great idea!


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  84. Angela on August 25, 2011 at 8:56 am

    These are SERIOUSLY the best things EVER!! I was making them for my friends kids and sadly had to go without the peanut butter because of a food allergy, so I through in some butterscotch chips… YUMMO, but the chewy and crunch… OMG!! So I can just imagine the YUM with peanut butter because EVERYTHING is better with peanut butter LOL Thanks so much for posting!


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  87. Danielle F on September 23, 2011 at 9:23 pm

    Instead of halving the brownie recipe, what about using a larger pan???


    • Michelle on September 24th, 2011 at 12:01 am

      That wouldn’t really work since it’s already a 9×13-inch pan, and a larger pan wouldn’t accommodate the marshmallow and chocolate/crisp topping. You would need to start altering everything.


  88. Kai on October 6, 2011 at 8:59 pm

    Okay, these are cooling and I am excited about tasting these. They’re fun to make and it smells fantastic. Lots of texture and flavor – Got milk?


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  90. Alyssagre on October 10, 2011 at 1:16 pm

    My mother has been making these for me for years!!! In high school she brought them to every sports game, in University I’d get a box of them in the mail every other month, and to this day I can count on a huge pan of these for every holiday. We always just called them Ooey Gooeies. So delicious 🙂


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  92. kim on November 22, 2011 at 12:08 pm

    These brownies are amazing!! My friends love it when I make these for them! They are perfect- thanks for sharing the recipe 😀


  93. ashley on December 30, 2011 at 10:51 pm

    These are the best brownies I have ever made. Made them for a family gathering over the holidays and everyone loved them! Making them again tomorrow for a New Years celebration at our house.

    Great blog.


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  95. Jess on January 15, 2012 at 1:39 am

    These were so great, but I didn’t have rice cereal so I used fiber one 80calorie squares and they were equally delicious!


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  99. fourkicks on February 19, 2012 at 12:24 pm

    Goes down a treat but if your not using the peanut butter i i think you need more rice krispies and chocolate, I added a bit of salt as i left out the peanut butter because it was a gift and sweet and salty goes really well. Simple yet delicious.


  100. alinia on March 5, 2012 at 2:33 pm

    Yummy, but I would nudge these towards the candy side rather than the brownie side, mostly because I tweaked them too far in the toppings direction. I used the Ghiradelli fudge brownie mix in the 9″x13″ pan (baked at 325 for 20mins), then the marshmallows (3mins), and then the peanut butter topping which I increased by half. The marshmallows might as well cool completely before spreading the peanut butter topping, because as these chilled, the marshmallows bubbled up from underneath the molten topping. And I didn’t get anything from the marshmallow layer — if you have ever had See’s Scotchmallows, that’s my ideal balance. Next time I will likely make the brownie layer in the regular 8×8 pan, either double or omit the marshmallows, and then do a regular amount of the topping. Honestly I could have just eaten the chocolate PB&rice krispies topping with a spoon and been happy. 🙂


  101. Shim Shalabim on March 12, 2012 at 10:02 pm

    I just made these with a couple of modifications. 1/ I added two tablespoons of Pernagotti Cocoa ( In addition to the 10 oz of melted chocolate AND I adapted a technique from a Robert Steinberg recipe ( very excellent). I skipped the bowls and used big 3 and four quart pots. The process change I made was to add the eggs directly to the cooled melted chocolate, one at a time, and then added the sugar and vigorously stirred it for one minute to get the sugar to melt and assimilate into the chocolate with no graininess. I know this sounds insignificant but really it makes the brownies the perfect density with a layer of a very crispy top, a cake like mid layer with a thicker more fudge like middle layer with a somewhat cake,like bottom. I baked at the same temp/time and I also used a parchment lining instead of the butter or grease. I did not make the peanut butter OR marshmallow topping because I wanted to do the brownies alone first. I want to try a caramel variation of the topping with peanuts.

    This is really a sensational essential recipe and the results were ridiculously delicious.So far, judging by the rapidity with which they disappear, I would say my family agrees.

    Thanks, Michelle


  102. Daniela on March 27, 2012 at 6:21 am

    They look amazing. I am happy to have self made marshmallows left at home and can’t wait to use them finally. They waited for this recipe….:-) Thank you!!!



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  104. Suzi Watson on April 19, 2012 at 8:55 am

    I made these as an Easter treat to go with brunch. They were a huge hit! My 15 year old said these were the best things I had EVER made!


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  106. Lorrie on June 30, 2012 at 10:14 pm

    If I was in a hurry, could I use a box of brownies instead of making the brownies from scratch?


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  109. KC on December 24, 2012 at 10:13 pm

    These look soooo goooood! I’ve always wondered, wouldn’t having more eggs make the brownies more cake like, and less fudgey and chewy? Or is that not a factor in how chewy the brownies are? 🙂


  110. Insert _Username_Here on February 5, 2013 at 1:06 am

    These look so good! Really want to try these!! <3


  111. Kim on February 11, 2013 at 4:40 pm

    Well I made a caramel version of these and got the most rave reviews ever! Firstly, I did use large marshmallows to accommodate the brownies. Next, I melted butterscotch chips and fleur de sel caramel with the butter. Then I mixed in rice flakes instead of krispies (just because hubby bought the wrong thing but they made a great difference)! It was runny at first but got it all on and when it cooled it was perfectly solid and ridiculously good!


  112. Taylor on February 12, 2013 at 2:46 pm

    Hi I plan on making these for my boyfriend for valentines day. Will it be too sweet if I use semi-sweet chocolate chips for the brownie base instead of unsweetened? My second question is, will brownie mix from a box be just as good? If you can help that would be great!


    • Michelle on February 13th, 2013 at 11:53 am

      Hi Taylor, Definitely don’t use semisweet in place of the unsweetened chocolate; it will be too much. You could also use a brownie mix if you’d like (make sure it’s the right size box for a 9×13-inch pan – a lot of them are for smaller, square pans).


      • Taylor on February 13th, 2013 at 9:54 pm

        Thank you very much!!


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  114. Judi on May 18, 2013 at 8:02 am

    I made these yesterday for a memorial service for a friend who loved chocolate. You would think I would know better than to try something I’d never baked before… but why stop now?? I really believe that (after the step when you melt the marshmallows) this should be cooled and put in the refrigerator to set. THEN pour the peanut butter/chocolate crispy topping on top and return to the fridge. Thank goodness I evenly distributed the crispy topping on top of the molten marshmallow as best as I could, because the crispy topping just sunk, and was impossible to spread evenly on top. It turned into a gooey mess, and didn’t ‘layer’! They are still delicious, but some areas didn’t get much crispy goodness, and they didn’t look layered.


  115. Judi Pickell on June 2, 2013 at 11:34 pm

    I have made other recipes from this blog with success. However, I made these thinking they would be awesome they really didn’t work for me or the family party I took them to. The brownie was not as moist as I thought they should be. the chocolate layer wasn’t as think as I thought it should be. I even came home and double checked the recipe to see if I had missed something but nope, I didn’t everything just right. Disappointed.


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  120. Kara on March 31, 2014 at 12:48 am

    These look absolutely amazing!! Do you have any ideas for a good substitute instead of peanut butter if you have major peanut allergies???


    • Michelle on April 1st, 2014 at 5:19 pm

      Hi Kara, What about almond or cashew butter?


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  123. Michaela on September 22, 2014 at 9:53 pm

    These are amazing little treats! What a great idea to half the brownie layer! They always did seem a little too thick on the bottom. Thanks!


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  126. Dianna on October 16, 2014 at 1:15 am

    Some questions…Some said this bar was way too sweet and suggested using bittersweet chocolate. Would cutting back the sugar in the brownie have made any impact on the sweetness? Also, would melting and combining the marshmallow, rice cereal and chocolate together solve the issues faced with marshmallow bubbling up when trying to spread it rather than making them two separate layers? Third, would making these in a cupcake tin (regular or mini) and then top with marshmallow followed by the chocolate/rice mixture or a mixture of all 3 work? It sounds like a great treat but if they are too sweet, it is a turn off.


    • Michelle on October 16th, 2014 at 10:34 am

      Hi Dianna, I definitely think that things like sweetness, spiciness, etc are extremely subjective, as everyone’s taste buds are completely different. What might be too sweet or too spicy for one person might be just right for another. I’d recommend making the recipe as-is, then determining if you want to make any adjustments (I actually recommend doing this for any new recipe).


  127. Amy on November 20, 2014 at 7:35 pm

    OMG these are so yummy!!!!!!!!! Thanks for the recipe


  128. Kris on April 16, 2015 at 3:45 pm

    These were amazing, very rich. My family gobbled them right up!


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  130. Mary on June 6, 2016 at 12:33 pm

    Made these yesterday for school staff year-end appreciation treat. Next time, I will allow to cool for an hour before adding/spreading the choc peanut butter topping. I think it will help it spread easier. They cut easily and perfectly with a sharp nice, and look beautiful in a platter. Of course, I got some high-fives!!!!!!!


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