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Reese’s Pieces Chocolate Chip Cookie Bars


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  • Author: Olivia
  • Total Time: 1 hour 15 minutes
  • Yield: 16 large bars or 24 small bars
  • Diet: Vegetarian

Description

Thick, chewy cookie bars loaded with rich chocolate chips and crunchy Reese’s Pieces candies. These easy one-pan treats combine classic chocolate chip cookie flavor with sweet peanut butter crunch for the perfect crowd-pleasing dessert.


Ingredients

  • 1 cup (226 g) unsalted butter, softened
  • 1 cup (200 g) packed brown sugar
  • 1/2 cup (100 g) granulated sugar
  • 2 large eggs, room temperature
  • 2 teaspoons vanilla extract
  • 2 1/2 cups (315 g) all-purpose flour
  • 1 teaspoon baking soda
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon salt
  • 1 cup (175 g) semi-sweet chocolate chips
  • 1 cup (200 g) Reese’s Pieces candies

Instructions

  1. Preheat oven to 350°F (175°C). Grease or line a 9×13-inch baking pan with parchment paper.
  2. In a large bowl, cream together butter, brown sugar, and granulated sugar until light and fluffy, about 2–3 minutes.
  3. Add eggs one at a time, mixing well after each addition. Stir in vanilla extract.
  4. In a separate bowl, whisk together flour, baking soda, baking powder, and salt.
  5. Gradually add dry ingredients to wet mixture, mixing just until combined. Do not overmix.
  6. Fold in chocolate chips and Reese’s Pieces evenly throughout the dough.
  7. Spread dough evenly into prepared pan and smooth the top.
  8. Bake for 25–30 minutes, until edges are golden brown and a toothpick inserted in the center comes out with a few moist crumbs.
  9. Cool completely in the pan before slicing into bars.

Notes

  • Do not overbake to maintain a soft and chewy center.
  • Allow bars to cool fully before slicing for clean cuts.
  • Store in an airtight container at room temperature up to 4 days.
  • Wrap individually and freeze up to 3 months.
  • Reduce added salt to 1/4 teaspoon if using salted butter.
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 bar (based on 16 servings)
  • Calories: 380
  • Sugar: 30 g
  • Sodium: 220 mg
  • Fat: 20 g
  • Saturated Fat: 11 g
  • Unsaturated Fat: 7 g
  • Trans Fat: 0 g
  • Carbohydrates: 47 g
  • Fiber: 1 g
  • Protein: 5 g
  • Cholesterol: 60 mg