Ingredients

  • 1 cup Unsalted Butter, Room Temperature
  • 1-1/2 cup Granulated Sugar
  • 1-1/2 cup Light Brown Sugar, Packed
  • 4 Large Egg Whites, Room Temperature
  • 1/2 cups Creamy Peanut Butter
  • 1 Tablespoon Vanilla Extract
  • 3-1/2 cups All-purpose Flour
  • 2 teaspoons Baking Soda
  • 1/2 teaspoons Salt
  • 24 Reese's Peanut Butter Cups, Roughly Chopped

Method

  • Preheat oven to 350°F.
  • Cream butter and sugars together on medium speed for 3 minutes. Add egg whites and mix for 1 minute. Add peanut butter and vanilla and mix for an additional 1 minute.
  • Sift flour, baking soda, and salt together in a medium bowl. Slowly add flour mixture to butter mixture on slow speed; mix just until incorporated. Use a spatula to mix in chopped Reese's peanut butter cups.
  • Use an ice cream scoop to measure out perfect mounds of cookie dough, and then place 6 raw cookies on a Silpat or parchment-paper-lined baking sheet. Smash each cookie down with your palm, and then bake for 11 minutes. Allow cookies to rest for 3 minutes before removing to a baking rack to cool.