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Peanut Butter Cup Brownies

  • Author:
  • Total Time: 35 minutes


Units Scale


  • 1/2 cup butter
  • 1 bag (12 oz) semi-sweet chocolate chips
  • 1/2 cup brown sugar
  • 1/2 cup sugar
  • 3 eggs
  • 1 cup flour
  • pinch of salt
  • 30 miniature Reese’s Peanut Butter Cups, chopped in half
  • Additional peanut butter cups for garnish, optional

Peanut Butter Frosting:

  • 4 tablespoons butter, softened
  • 4 tablespoons peanut butter
  • 1 1/2 to 1 3/4 cups powdered sugar, sifted
  • 23 tablespoons whipping cream (or milk is fine)
  • 1 teaspoon vanilla



  1. Preheat oven to 350 degrees. Line a 9×9 pan with foil and spray with nonstick cooking spray.
  2. In a large saucepan, melt the butter and chocolate chips on low heat, stirring frequently. Remove from heat and add sugar, stir until well combined. Add eggs, one at a time, stirring until well combined. Add flour and salt and mix until combined.
  3. Gently stir in chopped peanut butter cups. Pour evenly into prepared pan.
  4. Bake for 25-30 minutes or until toothpick comes out with just a few “brownie crumbs” on it. Cool completely and frost with peanut butter frosting.


  1. In a large mixing bowl, cream butter and peanut butter together until light and fluffy. Add powdered sugar, half-n-half and vanilla and beat until well combined.


  • Use the miniature peanut butter cups that come wrapped in foil, not the mini, mini ones that come already unwrapped in the bag.
  • Prep Time: 15 minutes
  • Cook Time: 25 minutes
  • Category: Brownies & Bars
  • Cuisine: American