Colossal Reese’s Pieces Chocolate Chip Cookies

My infatuation with the combination of chocolate and peanut butter is very well-documented here on the site. You put the two of them together and I’m completely unable to practice any sort of restraint. The good news? I know I’m not alone. I’ve been thrilled to hear from all of the other chocolate/peanut butter fanatics out there! So, it probably comes as no surprise that I keep finding new ways to throw the two of them together. Sometimes, the ideas are born out of desperation (I need some chocolate and peanut butter immediately).  Sometimes, I see a recipe on a blog, in a magazine or in a cookbook that looks irresistible, and sometimes, I stare at my pantry ingredients and see the perfect storm. These cookies were born out of a perfect storm. In fact, you know that enormous rogue wave that kills George Clooney at the end of the movie by the same name? It has just met its culinary counterpart.

Speaking of infatuations, most of you also know I’m a hockey fanatic and a huge Penguins fan. Last year, when tickets went on sale for the upcoming season, I had my sights set on one game.

Thursday, December 29th.
Flyers vs. Penguins.
The return of Max Talbot and Jaromir Jagr.

My little fingers click, click, clicked away on Ticketmaster at exactly 10:00am the morning tickets went on sale, but they were immediately sold out. I figured I would check StubHub as the game got closer and try to snag tickets. Lo and behold, a couple of months later, I received my regular Penguins email newsletter. Nestled at the bottom of the email was a notice that the team would be selling 3-game packages for all of the home games versus the Flyers. My fingers have never typed so fast. To say that purchasing that ticket package was an impulse purchase would be the understatement of the century. The thing about those tickets, though? They came pre-loaded with $25 worth of concessions. Turns out, it’s pretty hard for two people to eat and drink $50 worth of concessions at one game. We were at the last game of the season, and I realized there was still a balance on our two tickets, even after we had eaten and gotten drinks. Not willing to throw it away, I hit the concession stand one last time. What did I buy? I stocked up on Reese’s Pieces, of course! “I can use these to bake!” was my immediate exclamation.

Fast forward a month, and in my drawer of baking goodies, I see the following:

An unopened bag of Reese’s peanut butter chips.
Boxes of Reese’s Pieces.
Three half-full bags of chocolate chips.
A jar of peanut butter.

The perfect storm. Obviously, these cookies were meant to be. Massive, soft, and chewy. Packed with tons of peanut butter and chocolate. They’re amazingly delicious, and they make the fact that I have no hockey team to root for in May just slightly more bearable.

One year ago: Raspberry Streusel Bars
Two years ago: 7 of the Best Ice Cream Recipes
Three years ago: Easy Fudge
Five years ago: Dark Chocolate Chip Scones

Colossal Reese's Pieces Chocolate Chip Cookies

Yield: 18 jumbo cookies

Prep Time: 15 minutes

Cook Time: 12 minutes

Total Time: 30 minutes


3¾ cups all-purpose flour
1½ teaspoons baking soda
¾ teaspoon salt
½ cup unsalted butter, at room temperature
½ cup creamy peanut butter
1 cup light brown sugar
¾ cup granulated sugar
2 eggs
4 teaspoons vanilla extract
1½ cups semisweet chocolate chips
1 cup peanut butter chips
1 cup Reese's Pieces
Fleur de sel, for sprinkling (optional, but awesome!)


1. Preheat oven to 350 degrees F. Line two baking sheets with parchment paper; set aside.

2. In a medium bowl, whisk together the flour, baking soda, and salt; set aside.

3. With an electric mixer on medium speed, cream together the butter, peanut butter, and both sugars until light and fluffy, about 3 minutes. Scrape down the sides of the bowl, add the eggs and vanilla extract, and beat until combined. Reduce the mixer speed to low and gradually add the flour, mixing until it has almost all been incorporated. Add the chocolate chips, peanut butter chips, and Reese's Pieces, and mix briefly (about 20 seconds) to ensure they are evenly distributed.

4. Roll a ¼ cup of dough into a ball and place on one of the baking sheets. Repeat with the rest of the dough - you should end up with about 18 cookies. With your fingers, press down on the balls of dough to flatten into disks, about ½-inch thick. Sprinkle with a pinch of Fleur de Sel. Bake the cookies for 12 to 15 minutes, just until the edges of the cookies are beginning to turn a light brown. Cool the cookies on the baking sheets. Store in an airtight container at room temperature for up to 5 days.


104 Responses to “Colossal Reese’s Pieces Chocolate Chip Cookies”

Comment Pages 1 2
  1. Margot C on May 15, 2012 at 12:33 am

    Ooow-wee, I’m making these. Do you have to make them huge?


    • Michelle on May 15th, 2012 at 11:27 am

      Hi Margot, No, you could definitely make them smaller, just be sure to reduce the baking time.


  2. Averie @ Averie Cooks on May 15, 2012 at 12:47 am

    I love peanut butter. And cookies. And chocolate. Looks like a winner, for sure :)


  3. Marsha on May 15, 2012 at 2:54 am

    Wow, I can’t help drooling. I just love the Colossal Reese’s Pieces Chocolate Chip Cookies
    Well done!
    If you submitted your Colossal Reese’s Pieces Chocolate Chip Cookies photos to , I’ll bet they will make you on the home page.
    Gosh, you have made me sooo hungry !


  4. SaleQubi on May 15, 2012 at 2:59 am

    wow, I love this cookies!!


  5. Choc Chip Uru on May 15, 2012 at 3:25 am

    Huge and peanutty and chocolatey? Count me in 😀

    Choc Chip Uru


  6. Janine ( on May 15, 2012 at 6:55 am

    You caught my attention with the word “colossal”! Who doesn’t like their cookies “massive, soft, and chewy”?? These look scrumptious!


  7. Tanya on May 15, 2012 at 7:01 am

    I think nothing is better than chocolate and peanut butter! In college, my roommate and I would live on Hershey bars dipped in peanut butter! Yes, we got the freshman 15! These looks so good. I happen to have Reese’s Pieces at home….


  8. Jennifer on May 15, 2012 at 7:16 am

    These look amazing! I also have a love of all things chocolate and peanut butter together. How could that be wrong? I think it’s hilarious that your last buy on your card were for something to bake with later. That’s thinking ahead!


  9. Nicole on May 15, 2012 at 7:18 am

    Like you, I am hooked on this combination and will be trying these THIS week!

    The Kidless Kronicles


  10. Ellen @ The Baking Bluenoser on May 15, 2012 at 7:25 am

    This is like my dream cookie recipe. Thank you for making dreams come true!


  11. Katrina on May 15, 2012 at 7:36 am

    I love these! Yum!


  12. Chris on May 15, 2012 at 7:53 am

    I saw these pop into my email this morning and my jaw dropped. Well, of course, first I read Peanut Butter Cups and thought wow! Colossal and PB Cups (which would be awesome)! Then I read Reese’s Pieces – equally as cool. I’m going to try and make these for the office!


  13. Erin @ Brownie Bites on May 15, 2012 at 7:55 am

    Bookmarked. I’m in love with giant bakery-style cookies!


  14. Amanda on May 15, 2012 at 7:59 am

    I LOVE Reece’s pieces. They have always been my favorite since I am allergic to chocolate. Adding them to cookies? Out of this world good!


  15. shelly (cookies and cups) on May 15, 2012 at 8:14 am

    This is a cookie. A reallll cookie.


  16. Natalie @ Cooking for My Kids on May 15, 2012 at 8:19 am

    These cookies are so calling my name. Chocolate and peanuts butter are definitely made to go together.


  17. Vicki Pieranunzi on May 15, 2012 at 8:21 am

    I think you need to save one for your aunt……or am I too late?


    • Michelle on May 15th, 2012 at 10:15 am

      Absolutely! Not too late at all :) I’ll text you… I’ll be in your area today, I can drop a couple off to you!


  18. Erin on May 15, 2012 at 8:50 am

    These look like my perfect cookie! Yum!


  19. Heather Fisher on May 15, 2012 at 9:16 am

    I hate to show my ignorance, but what is Fleur de sel and where might I find it? Unfortunately, the Pens let us down and it looks like it’s going to be a lonnnng summer until training camp starts.


    • Michelle on May 15th, 2012 at 11:28 am

      Hi Heather, Fleur de sel is a flaky sea salt, similar to maldon. I haven’t found it in local grocery stores, but you can buy it at places like Williams-Sonoma, Sur la Table, Amazon, King Arthur Flour, etc.


  20. Claire @ Live and Love to Eat on May 15, 2012 at 9:20 am

    Any cookie that is described as colassal has to be a winner in my book! :)


  21. Erin on May 15, 2012 at 9:37 am

    Yummy, I made cookies like this off of Elle’s New England Kitchen but didn’t have pb chips in there. These look like awesome cookies!


  22. Laura @ The Salty Kitchen on May 15, 2012 at 9:57 am

    Seriously making these this weekend. If I can wait that long!


  23. Emilie @ Emilie's Enjoyables on May 15, 2012 at 10:13 am

    chocolate and pb are the best ever. and I love that you used your credit to have the ingredients! genius :)


  24. Eileen on May 15, 2012 at 10:14 am

    I will be making these one day soon!


  25. Shawn @ I Wash...You Dry on May 15, 2012 at 10:30 am

    Perfection! This is my type of cookie!


  26. Rachel @ My Coffee Cravings on May 15, 2012 at 10:35 am

    Any cookie with the words Reeses and Colossal is my kind of cookie! These look so yummy.


  27. Jessica @ Portuguese Girl Cooks on May 15, 2012 at 10:38 am

    I love reeses pieces..these look so yummy!


  28. Nicole on May 15, 2012 at 11:27 am

    Those look too yummy!


  29. Catalina @ Cake with Love on May 15, 2012 at 11:35 am

    I love reeses pieces in cookies, they add the right amount of crunch and that melting chocolate is amazing!


  30. Stephanie on May 15, 2012 at 11:51 am

    Can always use some extra Reese Pieces. hehe


  31. kristi on May 15, 2012 at 12:00 pm

    What a perfect recipe. I have a friend going through a rough time, this should certainly bring s smile to her. Thanks so much for sharing your recipes!


  32. Anita at Hungry Couple on May 15, 2012 at 12:00 pm

    I thought about it and I realized I don’t really need any other type of food for at least a week! :)


  33. Laura Dembowski on May 15, 2012 at 12:09 pm

    No chocolate chips for me (allergic :( ). But I have a feeling these cookies will be seriously amazing even without them!


  34. Meghan @ Life Post-Cornell on May 15, 2012 at 12:21 pm

    These look to die for! Bathing suit weather what? Still far enough away. I need to make these cookies asap!


  35. CJ at Food Stories on May 15, 2012 at 12:34 pm

    I love that you were thinking about baking while you were at the game … great food story :-)


  36. Villy @ For the love of Feeding on May 15, 2012 at 1:22 pm

    “Colossal” is the key word here. YUM!


  37. madge @ vegetariancasserolequeen on May 15, 2012 at 2:35 pm

    Way to be resourceful with the concession card!!! Don’t you love when a pantry full of ingredients becomes a culinary masterpiece??? Another example of your resourcefulness.


  38. tracy via the traveling cupcake on May 15, 2012 at 2:53 pm

    I think these are the perfect treat to take to the hospital with me this weekend – going to try and butter up the nurses in time for delivery 😉 Thanks for sharing the recipe!


  39. Erin @ Dinners, Dishes, and Desserts on May 15, 2012 at 3:54 pm

    I am in love! I love peanut butter cookies, and this is just insanely huge and amazing looking!


  40. Paula @ Vintage Kitchen Notes on May 15, 2012 at 4:20 pm

    Perfectly shaped cookies!


  41. what katie's baking on May 15, 2012 at 5:02 pm

    i love reeses… and cookies, especially big cookies.
    so these are perrrfect


  42. Renee on May 15, 2012 at 8:14 pm

    Holy monkey! I’m in love!


  43. Emily @ Life on Food on May 15, 2012 at 8:32 pm

    I saw these on Pinterest today and had to check it out. So glad I did; they look amazing!


  44. Tracey on May 15, 2012 at 8:43 pm

    I LOVE that you stocked up on baking ingredients at the rink, that’s so awesome. (We don’t discuss not having teams to root for, I’m still trying to decide if I can bring myself to cheer for someone these last few weeks….) These cookies sound insanely good, I’m a huge chocolate/peanut butter fanatic too :)


    • Michelle on May 15th, 2012 at 8:51 pm

      I know, such a massive bummer. I really don’t care at all who wins at this point, my main objectives were having the Flyers and the Caps eliminated. Now that that’s taken care of (yay!) I have no rooting interest. I guess I’d like to see Phoenix win. If they don’t, then the Devils, since I still like Petr Sykora from when he was with the Pens. It’s hard for me to root for big market teams like NY and LA.


      • Erin on January 28th, 2013 at 12:13 pm

        I had the same very dry dough problem and I have tried three separate times, I even left butter on counter overnight so it was room temp. I have a stand mixers it was light and fluffy before added flour mixture but I still had to add almost half cup milk.


  45. Vicki Pieranunzi on May 15, 2012 at 8:47 pm

    Thanks for the special delivery cookies today, Michelle. I did share with Uncle Bubbles and they were awesome, even better than I thought! Love you!


    • Michelle on May 15th, 2012 at 8:58 pm

      You’re welcome, my pleasure! So glad you and Uncle Ray enjoyed the cookies! :) Love you!


  46. Tracy {Pale Yellow} on May 15, 2012 at 9:45 pm

    Great looking cookies! I wish I had extra candy laying around, mine never seems to last that long!


  47. Maria on May 15, 2012 at 9:53 pm

    Love everything about these cookies!


  48. Adrienne on May 16, 2012 at 8:11 am

    Loved this recipe! When I made them, the dough was kind of dry and crumbly. This made making the balls and flattening them much more difficult. Where did I go wrong? They still taste delish, but they just aren’t pretty like yours! Love your blog!


    • Michelle on May 17th, 2012 at 2:33 pm

      Hi Adrienne, So sorry to hear yours was a little dry. A couple of things that might have caused this. I’ve found that the temperature of butter can have drastic effects on simple cookie recipes. If the butter wasn’t softened enough, then it would crumbled into the sugars and peanut butter, and not softened into a fluffy mixture. Also, be sure to really beat the butter, peanut butter and sugars longer than you think you might need to. They’ll come together in about a minute, but it takes them an additional 1 to 2 minutes to really incorporate, break down, and become light and fluffy. Finally, if you find that your dough is still too dry, you can add a tablespoon or two of milk.


  49. Kristy on May 16, 2012 at 11:05 am

    These look like absolute heaven. Holy moly.


  50. Lisa Baird on May 16, 2012 at 2:54 pm

    Was so excited to make these cookies, but I’m reinforcing Adrienne…My dough was very dry, I suspected it would be when I saw 3 3/4 cups flour and only 1/2 cup peanut butter and 1/2 cup butter. Was it supposed to be 2 3/4 cup flour? I may use your idea of the the 3 kinds of chips in my old PB cookie recipe as that’s a great combo! Thanks for the idea of combining those chips.


    • Michelle on May 17th, 2012 at 2:47 pm

      Hi Lisa, I’m sorry you had some issues with the dough being dry. I left a lengthy response to Adriene above as to what the problem might be. The flour was not a misprint, and my dough was nice and soft. Be sure that the butter has really been softened to room temperature, and it isn’t the least bit cool, and ensure that you give it time to whip together with the peanut butter and sugars. Finally, if it’s still a little dry, you can mix in a tablespoon or two of milk to help it come together.


      • Michelle on June 27th, 2012 at 8:11 am

        I had this exact same problemw ith the dough being dry! Such a disappointment as these looked soooo good:) Can’t lie though, the dough still tasted pretty yummy, I just wasn’t able to serve them like I had hoped!


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