Dig into some more big chunky cookies! My Copycat Levian Bakery Cookies are super thick and try my Breakfast Cookies for a treat to wake up to!

Monster M & M Cookies

Now, these aren’t just any kind of cookie. They are MONSTER cookies. They are loaded with peanut butter, oats, chocolate chips, and M & M’s. These M & M Monster Cookies are a mix between my Chewy Peanut Butter Cookies and Peanut Butter M & M Cookies. They are super thick, chewy, and loaded with tons of M & M’s and chocolate chips. I slightly under-bake the cookies to get the soft, chewy center. This recipe makes about 16-18 pretty good-sized cookies. I like to double or triple the recipe to have some extra to freeze. These monster cookies are the perfect blend of soft and chewy. I love the texture of the old-fashioned oats in this cookie. They are also a great cookie to load up with any leftover Halloween candy you still have! I love to mix in mini Reese’s cups!

What you’ll need to make Monster Cookies

Butter: I used unsalted butter and added salt later. Skip the salt if you add salted butter. Sugar: Just light brown sugar is needed for these Monster Cookies. You could use white or dark brown sugar in a pinch. Peanut butter: Creamy peanut butter gives the best texture. I like to use a brand like Skippy of Jif instead of brands that are 100% nuts. Vanilla: Vanilla brings out the warmth and sweetness of these cookies. Egg: Egg is a binding ingredient, making everything stick together. Flour: Flour is the foundation of most cookie recipes. I haven’t tried gluten-free flour for this recipe yet. Let me know if you do in the comments below! Salt: Just a little seasoning makes the sweetness pop! Baking soda: Baking soda gives the monster cookies a bit of a lift. Oats: I recommend old-fashioned oats, and not steel cut or instant for this recipe. Mix-ins: I mixed in chocolate chunks and m&m’s. Check out my list below for some other ideas!

How to make Monster M & M Cookies

Cream sugar and butter: In a stand mixer with the paddle attachment cream butter and sugar until light and fluffy, about 3 minutes.

Peanut butter: Add in peanut butter and mix for 1-2 minutes.

Vanilla and egg: Add in vanilla and egg. Mix until combined.

Combine dry batter ingredients: Combine flour, salt, and baking soda in a small bowl.

Mix together: Add the dry ingredients to the batter in two parts with the stand mixer at the lowest speed. Mix for a little less than a minute. Do not overmix.

Add chunky ingredients: Fold in old-fashioned oats, M & M’s, and chocolate chips.

Portion cookies: Portion dough into 16-18 cookies and place on a silicone baking mat on top of a baking sheet.

Bake! Bake monster cookies for 11-13 minutes or until lightly golden brown and firm on the edges.

Sit: Remove from the oven and let sit for 3-4 minutes.

Cool: Transfer to a cooling rack to cool completely.

Mini Reese’s Chopped walnuts, pecans, or cashews White chocolate chips Crushed oreo’s Butterscotch chips Peanut butter chips Crushed pretzels

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