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Chunky, Chewy Peanut Butter and Chocolate Bars


  • 1 ¼ cups all-purpose flour (177g)
  • ½ teaspoon salt
  • ¾ teaspoon baking powder
  • ¼ teaspoon freshly grated nutmeg
  • 2 eggs
  • 1 cup firmly packed light brown sugar (215g)
  • 8 tablespoons butter, melted and cooled (113g)
  • 1 teaspoon vanilla
  • ½ cup chunky peanut butter (133g)
  • 18 Reese’s Peanut Butter Cups, cut in quarters
  • ½ cup peanut butter-flavored chips (85g)
  • ½ cup semi-sweet chocolate chips (85g)
  • extra peanut butter cups and chips for sprinkling on top


  1. Preheat oven to 350 degrees F. Spray an 8-inch square baking pan with non-stick cooking spray. See note*
  2. Combine the flour, salt, baking powder, and grated nutmeg in a bowl and whisk to combine.
  3. In another mixing bowl, whisk eggs. Add brown, cooled melted butter, and vanilla. Whisk until smooth.
  4. Add peanut butter and whisk until smooth.
  5. Remove 1 tablespoon from the flour mixture and toss with peanut butter and chocolate chips.
  6. Add flour mixture to wet mixture and stir with a wooden spoon until combined.
  7. Add peanut butter chips, chocolate chips, and chopped Reese’s cups and stir gently to combine.
  8. Transfer mixture to prepared baking pan and smooth.
  9. Bake until set and golden on the edges, about 30 minutes. Do not overbake.
  10. Let cool completely before cutting into squares.


*The key to success with these bars is to not overbake them.
*I use a baking pan with a removable bottom so that the bars come out perfectly neat.
*To make it easier to lift bars out of a normal pan, line pan with aluminum foil, leaving an inch or two over hang. When bars have cooled, just lift out of the pan before cutting into squares