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monster cookies

Ultimate Peanut Butter Cup Monster Cookies

These Ultimate Peanut Butter Cup Monster Cookies are perfect for parties, after school treats....and anytime cookie making! They bake up perfect every time!
Course Dessert
Cuisine American
Keyword best monster cookies recipe, monster cookies
Prep Time 15 minutes
Cook Time 12 minutes
Total Time 27 minutes
Servings 24 cookies
Calories 267kcal
Author Jenny
Cost $10


  • Oven
  • cookie sheet
  • mixing bowl


  • 2 sticks butter divided (one stick will be browned)
  • 1 cup packed dark brown sugar
  • 1/2 cup granulated sugar
  • 2 large eggs
  • 1 tablespoon pure vanilla extract
  • 2 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1 teaspoon kosher salt
  • 1 cup chocolate chunks I use the Trader Joe's chocolate block and chop myself
  • 1 cup Reese's Pieces
  • 1 1/2 cup Mini Peanut Butter Cups found at Trader Joe's


  • Preheat oven to 375 degrees F. and line baking sheet with parchment paper.
  • Place one of the sticks of butter in a small saucepan over medium heat to melt. Swirl and cook until bubbly and turns deep golden brown. Takes close to 10 minutes, but watch carefully swirling pan often to check color. Once butter has burned brown, pour into a heat proof bowl, scraping brown bits from pan into the bowl. Let cool for 15 minutes.
  • Place brown butter and regular stick of softened butter into a large mixing bowl or stand mixer. Add brown sugar and granulated sugar mixing until well combined. Add eggs and vanilla mixing until well combined. Add flour, baking soda and salt stirring until dough forms then add chocolate chunks, Reese's Pieces and mini peanut butter cups. Scoop dough onto baking sheet...you can do large 1/4 cup dough size balls onto the baking sheet or regular size scooped dough. If making the large cookies, place dough 2 inches apart from each other. If making regular size scooped cookie dough pieces, place 1 inch apart. For the large cookies, bake for 12-13 minutes. For regular size cookies bake for 10-12 minutes. Remove from oven and let cool before transferring.


Calories: 267kcal | Carbohydrates: 39g | Protein: 5g | Fat: 11g | Saturated Fat: 5g | Cholesterol: 15mg | Sodium: 230mg | Potassium: 157mg | Fiber: 2g | Sugar: 28g | Vitamin A: 33IU | Vitamin C: 1mg | Calcium: 35mg | Iron: 1mg