Ingredients

  • 1 (18.25 ounce) package brownie mix (such as Pillsbury(R))
  • 2/3 cup vegetable oil
  • 2 eggs
  • 1/4 cup water
  • 2 cups confectioners' sugar
  • 1 cup creamy peanut butter
  • 1/2 cup butter, softened
  • 1 (6 ounce) package chocolate chips
  • 6 tablespoons butter, softened

Method

  • Preheat oven to 350 degrees F (175 degrees C). Grease a 9x13-inch baking dish.
  • Combine brownie mix, oil, eggs, and water together in a bowl until batter is smooth; pour into the prepared baking dish.
  • Bake in the preheated oven until edges of brownies begin to pull away from the sides of pan, 28 to 31 minutes. Remove dish from oven and cool brownies.
  • Beat confectioners' sugar, peanut butter, and 1/2 cup butter together in a bowl until smooth and creamy; spread over cooled brownies.
  • Heat chocolate chips and 6 tablespoons butter together in a saucepan over low heat, stirring occasionally, until melted, about 5 minutes; spread over peanut butter layer. Cool and cut into squares.