Reese's Marshmallow Peanut Butter Chip Cookies

Delicious peanut butter, marshmallows and Reese's Peanut Butter Cups all stuffed in a cookie. Gooey, chocolaty and absolutely delicious!
Prep Time 5 minutes
Cook Time 8 minutes
Total Time 13 minutes


  • Cup Brown Sugar
  • ¾ Cup Peanut Butter
  • ½ Cup Butter , softened
  • 3 Tablespoons Milk
  • 1 Tablespoon Vanilla
  • 1 Large Egg
  • Cup Flour
  • ¾ Teaspoon Baking Soda
  • 1 Cup Chocolate Chips (or a few more <img draggable="false" data-mce-resize="false" data-mce-placeholder="1" data-wp-emoji="1" class="emoji" alt="😋" src=""> )
  • 8 Reese's Peanut Butter Cups , Chopped
  • Cup Mini Marshmallows


  1. Preheat the oven to 375 degrees. Line a baking sheet with a Silpat liner or parchment paper.
  2. In a large mixing bowl cream the butter and peanut butter, about 1 minutes. Add the brown sugar and beat for 2 more minutes. Add the milk, vanilla and egg and beat until smooth.
  3. Add the flour and baking soda and mix until smooth. Stir in the chocolate chips, Reese's and marshmallows.
  4. Scoop onto cookie sheet and bake for 7-8 minutes. Let cool for about 5 minutes on baking sheet before transferring to a cooling rack.