The Best Monster Cookies Recipe

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This recipe makes the best soft and chewy oatmeal, peanut butter, and chocolate monster cookies that everyone will enjoy. They are the perfect after-school snack, dessert, and sweet treat any time of the day.
Since this recipe is flourless, these cookies are gluten-free.

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Monster Cookies Recipe

I like to have fun with this cookie recipe by tweaking some ingredients, substituting different types and sizes of chips, or using chocolate chunks. 

M&M peanut butter oatmeal monster cookies

Monster Cookies Ingredients

Cream together sugars and butter until light and fluffy

Beat eggs, vanilla, baking soda, salt into peanut butter mixture

Beat in oats

Adding M&Ms and chocolate chips

Place dough balls on a Silpat

Cookie with add candies on top

The Best Monster Cookie

This recipe makes the best soft and chewy oatmeal, peanut butter, and chocolate monster cookies that everyone will enjoy. They are the perfect after-school snack, dessert, and sweet treat any time of the day. Since this recipe is flourless, these cookies are gluten-free.

4.84 from 6 votes

Print Recipe Rate

Course: Cookies, Dessert

Cuisine: American

Keyword: Monster Cookie Recipe, Monster Cookies

Prep Time: 20 minutes minutes

Cook Time: 12 minutes minutes

Servings: 48

Calories: 152kcal

Ingredients

• 1 cup Granulated Sugar
• 1 cup Packed Brown sugar (light)
• ½ cup Butter
• 3 Eggs (large)
• 1 ½ cups Peanut butter (creamy or chunky)
• 2 teaspoons Vanilla extract
• 2 teaspoons Baking soda
• ¼ teaspoon Salt
• 4 ½ cups Oats (Old Fashioned)
• 1 cup M&Ms (mini or regular)
• 1 cup Chocolate chips (mini or regular)
• Extra candies for topping

Instructions

• Preheat your oven to 350 F degrees
• Add to a large stand mixer bowl sugars and butter and cream them together.
• Next, add eggs and beat thoroughly.
• Add peanut butter, vanilla, baking soda, and salt mix well.
• Slowly add the oats.
• Mix in M&Ms and chocolate chips.
• Line a half sheet pan with a Silpat or parchment paper.
• Using a cookie scoop, measure out 2 Tablespoons of dough and roll it into a ball. Place cookie dough balls on the cookie sheet about 2.5" apart.
• Place a few extra candies on the tops of the dough balls.
• Bake cookies for 12 - 13 minutes.

  Remove from the oven and cool on the sheet pan for 5 minutes.

  Then gently transfer cookies to a wire cooling rack with a spatula.

Nutrition

Serving: 1g | Calories: 152kcal | Carbohydrates: 18g | Protein: 4g | Fat: 8g | Saturated Fat: 3g | Cholesterol: 16mg | Sodium: 120mg | Potassium: 89mg | Fiber: 1g | Sugar: 12g | Vitamin A: 84IU | Vitamin C: 1mg | Calcium: 18mg | Iron: 1mg

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Perfectly baked cookies

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Cooling monster cookies on a wire rack

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Thank you so much for your visit today. I hope you have found some inspiration and tried our delicious monster cookie recipe.

Bon appétit,

Kippi