Monster Cookies

Best monster cookie recipe! This easy flourless monster cookie recipe is made with oats, peanut butter, and M&M's.

Monster cookies are one of those fun recipes that throws all kinds of good stuff in for a cookie that's packed with deliciousness.

The base for these cookies is a simple oatmeal peanut butter dough. You may notice that there's no flour listed in the ingredients. It isn't a typo; there's no flour necessary for these cookies.

I use M&M's and mini chocolate chips in these cookies, but other mix-in ideas are given below.

What are monster cookies?

Monster cookies are oatmeal peanut buter cookies that have M&M's, chocolate chips, and other mix-ins.

How to make monster cookies

Begin by beating butter and sugars together in a mixing bowl until well-combined.

Next, mix in the eggs one at a time until combined.

Next, mix in the peanut butter and vanilla until combined. Creamy or crunchy peanut butter works, but I haven't tried using natural peanut butter in this recipe.

Then, stir in the oats, baking soda, and salt.

Finally, mix in the M&M's, chocolate chips, and any other mix-ins.

Since there isn't any flour in this recipe, the dough will be sticky. There is no need to flatten the cookies before baking; they will spread as they bake.

What else can I add?

You can swap raisins, coconut, chopped nuts, flavored baking chips, and more for part of the M&M's and/or chocolate chips.

Can the dough be frozen?

It can! To freeze the dough, I place scoops of dough on a baking sheet and then freeze until solid.

Then, I place the frozen scoops of dough in a resealable bag.

When baking the frozen dough, add about 2-3 minutes to the baking time (time will vary from oven to oven).

More cookie recipes!

• Easiest Chocolate Chip Cookie Recipe
• Brownie Cookies
• Classic No Bake Cookies

If you’ve tried this monster cookie recipe, don’t forget to rate the recipe and leave me a comment below. I love to hear from people who've made my recipes! You can FOLLOW ME on FACEBOOK, INSTAGRAM and PINTEREST for even more delicious food.

Monster Cookies

Easy monster cookie recipe. 

5 from 3 votes

Print Rate

Course: Dessert

Cuisine: American

Prep Time: 15 minutes

Cook Time: 8 minutes

Total Time: 23 minutes

Servings: 60 cookies

Calories: 146kcal

Author: Kate @ I Heart Eating

Ingredients

• ▢ 1 cup brown sugar packed
• ▢ ¾ cup granulated sugar
• ▢ ½ cup butter at room temperature
• ▢ 3 large eggs
• ▢ 1 ½ cups peanut butter¹
• ▢ 1 tablespoon vanilla extract
• ▢ 2 teaspoons baking soda
• ▢ 1 teaspoon kosher salt²
• ▢ 4 ½ cups oats³
• ▢ 1 ¼ cups M&Ms
• ▢ 1 cup mini semisweet chocolate chips

Instructions

• Pre-heat the oven to 350F. Line two baking sheet with parchment paper or silicone baking mats. Set aside.
• In the bowl of a stand mixer fitted with the paddle attachment, cream together the sugars and butter until light and fluffy, about 3 minutes on medium.
• Mix in the eggs, one at a time.
• Beat in the peanut butter and vanilla until well combined.
• Add the the baking soda, kosher salt, and oats. Stir in until combined
• Stir in the M&Ms and mini chocolate chips just until incorporated.
• Scoop 1.5 tablespoon scoops (medium cookie scoop) of the dough about 2 inches apart onto the prepared baking sheets
• Bake for 8-12 minutes.
• Let cookies cool on baking sheet for 5 minutes.
• Remove to wire cooling rack to finish cooling.

Notes

1. Creamy or crunchy ok. I haven't tried this recipe with natural peanut butter. 
2. Or ½ teaspoon table salt
3. Old-fashioned or quick oats ok. 
4. Nutrition values are estimates. 

Nutrition

Serving: 1cookie | Calories: 146kcal | Carbohydrates: 16g | Protein: 3g | Fat: 7g | Saturated Fat: 3g | Cholesterol: 13mg | Sodium: 126mg | Potassium: 94mg | Fiber: 1g | Sugar: 10g | Vitamin A: 70IU | Calcium: 18mg | Iron: 0.7mg

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