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Reese’s Pieces Peanut Butter Brownie Cookies: A Decadent Cookie with a Chocolate and Peanut Butter Twist

If you’re a fan of rich, chocolatey brownies and peanut butter treats, these Reese’s Pieces Peanut Butter Brownie Cookies are about to become your new favorite! These cookies combine the best parts of brownies and cookies in a single, delicious bite—chewy, fudgy centers, crispy edges, and loaded with Reese’s Pieces and chocolate chips for an irresistible peanut butter-chocolate combo.

Ingredients

Scale
  • 1 cup all-purpose flour
  • 1/3 cup cocoa powder
  • 1/2 tsp baking powder
  • 1/4 tsp salt
  • 1/2 cup unsalted butter, softened 🧈
  • 3/4 cup granulated sugar
  • 1/4 cup brown sugar, packed
  • 1 large egg 🥚
  • 1 tsp vanilla extract
  • 1/2 cup creamy peanut butter 🥜
  • 1 cup Reese’s Pieces candy
  • 1 cup semi-sweet chocolate chips 🍫

Tools You’ll Need

  • Mixing bowls
  • Whisk and spatula
  • Electric mixer (optional, but helpful for creaming the butter and sugar)
  • Baking sheet and parchment paper
  • Cookie scoop or spoon for portioning

Instructions

Step 1: Preheat Oven

Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

Step 2: Mix Dry Ingredients

In a medium bowl, whisk together the flour, cocoa powder, baking powder, and salt. Set aside.

Step 3: Cream Butter and Sugars

In a large bowl, beat the softened butter, granulated sugar, and brown sugar until creamy and smooth.

Step 4: Add Egg and Vanilla

Mix in the egg and vanilla extract until fully incorporated.

Step 5: Add Peanut Butter

Stir in the creamy peanut butter until the mixture is smooth and creamy.

Step 6: Combine Dry and Wet Mixtures

Gradually add the dry ingredients to the wet mixture, stirring just until everything is combined. Be careful not to overmix.

Step 7: Add Mix-Ins

Fold in the Reese’s Pieces and chocolate chips, distributing them evenly throughout the dough.

Step 8: Scoop and Bake

Scoop spoonfuls of dough (about 1.5 tablespoons each) onto the prepared baking sheet, spacing them about 2 inches apart. Bake for 8-10 minutes, or until the cookies are set around the edges but still soft in the center.

Step 9: Cool and Enjoy

Allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely. Then, enjoy your rich and chewy cookies!