Gooey Peanut Butter Cup Bars Recipe

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I wanted a different recipe that could stand out among the numerous trays of desserts served at potlucks and parties. With a marshmallow glaze and rich peanut butter in every bite, these brownies are always popular.
TOTAL TIME: Prep: 15 min. Bake: 25 min. + cooling
MAKES:24 servings
TOTAL TIME: Prep: 15 min. Bake: 25 min. + cooling
MAKES: 24 servings


  • 1 cup butter, softened
  • 2 cups packed brown sugar
  • 2 large eggs
  • 2 teaspoons vanilla extract
  • 1-1/2 cups all-purpose flour
  • 3 teaspoons baking powder
  • 1/4 teaspoon salt
  • 2 cups miniature marshmallows
  • 2 cups coarsely chopped peanut butter cups (about 10 ounces)
  • 1 cup chopped walnuts or pecans


  1. Preheat oven to 350 degrees. In a large bowl, cream butter and brown sugar until light and fluffy. Beat in eggs and vanilla. In a small bowl, whisk flour, baking powder and salt; gradually add to creamed mixture, mixing well. Fold in marshmallows, chopped candies and walnuts.
  2. Spread into a greased 13x9-in. baking pan. Bake 22-28 minutes or until edges begin to pull away from sides of pan and center is almost set. Cool completely in pan on a wire rack. Cut into bars. Store in an airtight container. Yield: 2 dozen.
Originally published as Gooey Peanut Butter Cup Bars in Taste of Home's Holiday & Celebrations Cookbook Annual 2016, p224

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