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No-Bake Monster Cookies Recipe


  • Author: Lily
  • Total Time: 2 hours 15 minutes
  • Yield: 16 squares 1x

Description

No-Bake Monster Cookies are a delightful and easy-to-make treat combining creamy peanut butter, oats, and chocolate, topped with colorful M&M’s. These cookies require no baking, making them a perfect quick and fuss-free dessert or snack.


Ingredients

Scale

Main Mixture

  • 6 tablespoons butter, softened
  • 6 tablespoons sugar
  • ¼ cup brown sugar
  • ¾ cup creamy peanut butter
  • 6 tablespoons quick cooking oats, pulsed in food processor
  • 1 teaspoon vanilla extract
  • ½ teaspoon salt
  • 1½ cups quick cooking oats, not pulsed
  • 8 tablespoons miniature M&M’s

Topping

  • 1 cup semi-sweet chocolate chips
  • 3 tablespoons heavy cream
  • 2 tablespoons miniature M&M’s

Instructions

  1. Prepare Pan: Line an 8-inch baking dish with foil or parchment paper and set it aside. This will help in easily removing the cookies after they are set.
  2. Cream Butter and Sugars: In a large mixing bowl, cream together the softened butter, sugar, and brown sugar until the mixture is smooth and fluffy. This forms the base for the cookie mixture.
  3. Add Peanut Butter and Dry Ingredients: Stir in the creamy peanut butter until well combined. Add the 6 tablespoons of quick cooking oats that have been pulsed in a food processor, vanilla extract, and salt. Slowly add the remaining 1½ cups of quick cooking oats (not pulsed) and fold in ½ cup (8 tablespoons) of miniature M&M’s evenly throughout the mixture.
  4. Press Mixture into Pan: Firmly press the cookie mixture into the prepared baking dish, creating an even layer across the bottom.
  5. Melt Chocolate Topping: In a small microwave-safe bowl, combine the semi-sweet chocolate chips and heavy cream. Microwave in 30-second intervals, stirring each time, until the chocolate is smooth and melted. Spread this chocolate ganache evenly over the pressed cookie mixture.
  6. Add Final Topping and Chill: Sprinkle the remaining 2 tablespoons of miniature M&M’s on top of the chocolate layer. Cover the dish and refrigerate for at least 2 hours, or until the cookies have set firmly. Once set, cut into squares and serve.

Notes

  • For a crunchy texture, pulse the oats lightly instead of finely processing them.
  • Use foil or parchment paper for easy removal and cleanup.
  • The chocolate topping can be substituted with your favorite melted chocolate or candy melts.
  • Store leftovers in an airtight container in the refrigerator for up to 5 days.
  • For a nut-free version, substitute peanut butter with sunflower seed butter and ensure M&M’s are nut-free.
  • Prep Time: 15 minutes
  • Cook Time: 0 minutes
  • Category: Dessert
  • Method: No-Cook
  • Cuisine: American

Keywords: no-bake cookies, monster cookies, peanut butter cookies, easy dessert, no bake dessert, chocolate peanut butter bars