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A stack of three lemon bars being sprinkled with powdered sugar.

Lemon Bars Recipe

Classic Lemon Bars with a shortbread-style crust and silky smooth, slightly tart, sweet lemon custard on top. All they need is a dusting of powdered sugar!
Course Dessert
Cuisine American
Prep 45 minutes
Cook 40 minutes
Total 1 hour 25 minutes
Servings 24 bars
Calories 162 kcal
Author Michelle

Ingredients

For the Crust

  • cups all-purpose flour
  • cup powdered sugar, plus extra for decorating finished bars
  • ¼ cup cornstarch
  • ¾ teaspoon salt
  • ¾ cup unsalted butter, at cool room temperature, cut into 1-inch pieces

For the Filling

  • 4 eggs beaten lightly
  • 1⅓ cups granulated sugar
  • 3 tablespoons all-purpose flour
  • 2 teaspoons grated lemon zest from about 2 large lemons
  • cup lemon juice
  • cup whole milk
  • Pinch salt
US Customary - Metric

Directions

  1. Preheat oven to 350 degrees F. Lightly butter a 9x13-inch baking pan and line with parchment paper.
  2. Make the Crust: Pulse flour, powdered sugar, cornstarch, and salt in a food processor. Add the butter and process for 8 to 10 seconds and then pulse until the mixture is pale yellow and resembles coarse meal, about three 1-second pulses. Sprinkle the mixture into the lined pan and press firmly into an even layer over the entire pan bottom and ½-inch up the sides. Refrigerate for 30 minutes, then bake until golden brown, about 20 minutes.
  3. Make the Filling: Meanwhile, whisk the eggs, sugar and flour in a medium bowl, then stir in the lemon zest, lemon juice, milk and salt to blend well.
  4. Reduce the oven temperature to 325 degrees F. Stir the filling mixture to reincorporate the ingredients, then pour into the warm crust. Bake until the filling feels firm when touched lightly, about 20 minutes. Transfer the pan to a wire rack; cool to near room temperature, at least 30 minutes. Lift the bars from the pan using the parchment paper, then place on a cutting board to slice into squares. Sift powdered sugar over bars, if desired. Leftover bars can be covered in plastic wrap and refrigerated for up to 2 days.

Recipe Notes

Nutritional values are based on one serving

Nutrition Facts
Lemon Bars Recipe
Amount Per Serving
Calories 162 Calories from Fat 54
% Daily Value*
Total Fat 6g 9%
Saturated Fat 3g 15%
Cholesterol 42mg 14%
Sodium 85mg 4%
Potassium 33mg 1%
Total Carbohydrates 24g 8%
Sugars 14g
Protein 2g 4%
Vitamin A 4.4%
Vitamin C 3.4%
Calcium 1.1%
Iron 3.3%
* Percent Daily Values are based on a 2000 calorie diet.