Monster Cookies

Monster Cookies

Monster cookies are a fan-favorite for a reason! They're delicious and bursting with candy goodness.

Monster Cookies
Monster Cookies
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Monster cookies have always been a bake sale favorite, and it's easy to see why. These delicious cookies are packed full of different candies for a dessert that is the ultimate indulgence. We also love that the oats and peanut butter lend these cookies a delicious chewy texture and salty peanut flavor. They are hearty enough to stand up to being dunked in a glass of milk, but we also think they're great with coffee or tea. No matter how you choose to enjoy these cookies, we think you're in for a pretty great snack time!

From the Chef: "If you can’t quite decide what you’re in the mood for, these Monster Cookies have you covered. With peanut butter, oats, M&M’s, and chocolate chips, they’re a dream dessert for the indecisive baker . . . or when you’re looking to use up some leftover Halloween candy." - Addie Gundry

This recipe is from RecipeLion's 103 Cookbook series, Easy Cookie Recipes:103 Best Recipes for Chocolate Chip Cookies, Cake Mix Creations, Bars, and Holiday Treats Everyone Will Love.

Yields24 cookies

Preparation Time20 min

Chilling Time30 min

Cooking Time10 min


  • 1/2 cup (1 stick) unsalted butter, softened
  • 1/2 cup light brown sugar, packed
  • 1 large egg
  • 3/4 cup creamy peanut butter
  • 1 teaspoon vanilla extract
  • 1/4 teaspoon salt
  • 1 1/4 cup all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/2 cup quick-cooking oats
  • 3/4 cup M&M's
  • 1/2 cup semisweet chocolate chips
  • 1/3 cup chocolate candy sprinkles

Monster Cookies Recipe


  1. Preheat the oven to 350ºF. Line two baking sheets with parchment paper.

  2. In a large bowl, cream together the butter, brown sugar, and granulated sugar. Add the egg, peanut butter, vanilla, and salt. Mix until well combined.

  3. In a separate medium bowl, whisk together the flour and baking soda. Gradually add to the butter mixture. Mix until combined, being careful to not overmix. Fold in the oats, M&M’s, chocolate chips, and chocolate candy sprinkles. Chill the dough for 30 minutes. Using a cookie scoop, shape the dough into 2-inch balls and place on the prepared baking sheets about 2 inches apart. Top with extra chocolate candy sprinkles.

  4. Bake for 9 to 10 minutes.

  5. Cool on the baking sheets for 10 minutes; the cookies will firm slightly as they cool. Serve.

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