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Monster Cookies

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This classic Monster Cookies recipe with peanut butter, oats, chocolate and M&MS’s gets a Halloween makeover with the addition of candy eyes and colorful sprinkles!

Seven cookies topped with candy eyes, M&M's, and colorful sprinkles surrounded by sprinkles, a black spider, and a glass of milk.

As you can see below, they can also be made without the candy eyes, and with any color of M&M’s that you have on hand!

Three Monster Cookies on a white napkin, with three more in the background with candy eyes and a big glass of milk.

Have you ever wondered why Monster Cookies do not normally have eyes? I decided that they should, but I promise that they are soft and delicious either way!

I also decided that they needed colorful jimmies sprinkled all over them to make them look even more festive.

Cookies topped with candy eyes, M&M's, and colorful sprinkles piled up on a green plate.

There’s just something soothing and magical about the combination of peanut butter and chocolate, wouldn’t you agree?

Recipe ingredients:

Ingredients to make Monster Cookies in small bowls.
  • Monster Cookies are pretty much a peanut butter cookie mixed with oats, chocolate chips and M&M’s.
  • The base cookie is made with softened butter, egg, pure vanilla extract, brown sugar, granulated sugar, salt, baking soda, and flour.
  • The candy eyes and colorful sprinkles make them fun and festive, but both are completely optional.
Six cookies with green, orange, and purple M&M's and sprinkles on a green board surrounded by sprinkles.

How to make easy Monster Cookies:

Preheat oven to 350 degrees. Line 3 baking sheets with parchment or silicone liners, set aside. 

In a large bowl, beat the butter and peanut butter together to combine.

Butter and peanut butter beaten with a hand mixer in a large bowl with a raw egg broken into the center.

Add the egg, vanilla, and sugars and beat until light and creamy.

Brown and granulated sugar added to the peanut butter mixture.

Add the flour and baking soda and beat just until combined.

Flour added to the peanut butter mixture.

Stir in the oats, chocolate chips, and M&M’s.

Chocolate chips, oats, and M&M's added to the cookie batter in a large bowl.

Scoop the dough and place on prepared baking sheets. I used a #30 {2 tablespoon} sized scoop.

Monster Cookies scoop cookingwithcurls.com

Lightly press to flatten cookies. Top with candy eyes, additional M&M’s and sprinkle with colorful sprinkles.

Eight cookie dough balls smashed on a parchment lined baking sheet and sprinkled with candy eyes and colorful jimmies.

Bake for 10 to 12 minutes. Cookies with be slightly browned along the edges, but still soft in the center. Remove from oven and allow to cool on the baking sheet for 5 minutes before moving to a wire cooling rack.

Eight baked monster cookies on a parchment paper lined baking tray.

Be very careful when moving the cookies, they will break apart while they are still hot. These Monster Cookies are super soft and perfect with a glass of ice cold milk {non-dairy of course}.

Cookies topped with candy eyes, M&M's, and colorful sprinkles piled up on a green plate surrounded by sprinkles, black spiders, and a glass of milk.

Don’t forget to check out my Monster Mash Popcorn! The popcorn is coated in green chocolate, pretzels are coated in purple chocolate, and there are also candy eyes and colorful sprinkles!!

Recipe Notes & Tips:

  • All ovens bake differently, cooking times are approximate. Mine were done in 11 minutes.
  • I only had old-fashion oats in the pantry (last time), which gives these cookies a bit of a crunch. I used quick oats this time and they just disappear into the cookie.

Tools used to create this recipe:

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Enjoy!!

Cookies topped with candy eyes, M&M's, and colorful sprinkles piled up on a green plate.

Monster Cookies

This classic Monster Cookies recipe with peanut butter, oats, chocolate and M&MS's gets a Halloween makeover with the addition of candy eyes and colorful sprinkles!
5 from 1 vote
Print Rate
Course: Dessert
Cuisine: American
Keyword: peanut butter cookies with oats, chocolate chips and M&M’s
Prep Time: 15 minutes
Cook Time: 10 minutes
Total Time: 25 minutes
Servings: 24 Servings
Calories: 192kcal
Author: Lisa Johnson

Ingredients

  • 0.5 cup unsalted butter
  • .75 cups creamy peanut butter
  • 0.5 cup light brown sugar lightly packed
  • .25 cup granulated sugar
  • 1 large egg
  • 1 teaspoon pure vanilla extract
  • 1.25 cups all-purpose flour
  • 0.5 teaspoon baking soda
  • 0.5 teaspoon sea salt
  • 0.5 cup quick cooking oats
  • .75 cups M&M’s
  • 0.5 cup chocolate chips I used bittersweet
  • candy eyes
  • colorful sprinkles

Instructions

  • Preheat oven to 350 degrees. Line 3 baking sheets with parchment or silicone liners, set aside.
  • In a large bowl, beat the butter and peanut butter together to combine. Add the egg, vanilla, and sugars and beat until light and creamy.
  • Add the flour and baking soda and beat just until combined.
  • Stir in the oats, chocolate chips, and M&M's.
  • Scoop the dough and place on prepared baking sheets. I used a #30 {2 tablespoon} sized scoop.
  • Lightly press to flatten cookies. Top with candy eyes, additional M&M's and sprinkle with colorful sprinkles.
  • Bake for 10 to 11 minutes. Cookies with be slightly browned along the edges, but still soft in the center.
  • Remove from oven and allow to cool on the baking sheet for 5 minutes before moving to a wire cooling rack.

Notes

  • All ovens bake differently, cooking times are approximate. Mine were done in 11 minutes.
  • I only had old-fashion oats in the pantry (last time), which gives these cookies a bit of a crunch. I used quick oats this time and they just disappear into the cookie.

Nutrition

Calories: 192kcal | Carbohydrates: 21g | Protein: 3g | Fat: 10g | Saturated Fat: 4g | Cholesterol: 20mg | Sodium: 72mg | Potassium: 74mg | Fiber: 1g | Sugar: 13g | Vitamin A: 155IU | Calcium: 23mg | Iron: 0.7mg

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2 Comments

  1. I’m licking my lips right now! Looks so good! Pinned and tweeted. We truly appreciate you taking the time to be a part of our party. Please stop by and party with us again. The party starts Monday at 7 pm and ends on Friday at 7 pm. Happy Sunday! Lou Lou Girls

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