Ultimate Collection of 16 Irresistible Monster Cookie Recipes

Have you ever tried making your own Monster Cookies? I’m sharing a simple and delicious recipe for chewy Monster Cookies packed with peanut butter, oats, and colorful M&M’s.

There’s something truly special about Monster Cookies. Their chewy texture and burst of flavors make every bite exciting. I’ve always loved how these cookies blend sweet, salty, and chocolatey in one perfect treat.

Over the years, I’ve experimented with different recipes, and these cookies never fail to impress. The combination of peanut butter, oats, and colorful M&M’s creates a delightful bite that’s both satisfying and fun.

You can easily make them at home with simple ingredients. Once you try these, you’ll see why they’re a favorite for any occasion or sweet craving.

1. Monster Cookies

These Monster Cookies are a delicious explosion of peanut butter, oats, chocolate chips, and M&M’s, creating a chewy, flavorful treat that’s always a crowd-pleaser. Simply cream together butter and sugars, mix in peanut butter, eggs, and vanilla, then fold in flour, oats, and candies before baking just until set—they’re best enjoyed slightly under-baked for that perfect chewy texture!

Read the Recipe: Monster Cookies

2. Big Giant Monster Cookies

Imagine biting into a massive, chewy cookie that combines the rich flavor of peanut butter with the fun crunch of mini M&Ms and hearty oats—these are Big Giant Monster Cookies! They’re easy to make with simple pantry staples, and each cookie is extra-large, packed with chewy, crispy edges and a soft, gooey center that cookie lovers adore.

Read the Recipe: Big Giant Monster Cookies

3. The BEST Chewy Monster Cookies

These Monster Cookies are a chewy, irresistible treat packed with nutty peanut butter, hearty rolled oats, and gooey pools of dark chocolate, all topped off with colorful M&M’s. They’re big, chunky, and full of fun flavors that make you feel like a kid while somehow feeling a little healthier!

Read the Recipe: The BEST Chewy Monster Cookies

4. Monster Cookies [www.justataste.com]

Get ready to enjoy delicious Monster Cookies that are chocolatey, chewy, and packed with peanut butter—a family-loved recipe perfect for sharing! Simply mix together the ingredients, scoop the dough onto baking sheets, and bake for about 12-15 minutes to reveal soft, flavorful cookies topped with fun mini M&Ms and chocolate chips—a festive treat ideal for any occasion!

Read the Recipe: Monster Cookies [www.justataste.com]

5. Best Monster Cookies

Get ready to enjoy soft, chewy Monster Cookies packed with creamy peanut butter, hearty oats, chocolate chips, and colorful M&M’s—a treat that appeals to both kids and adults. These cookies strike the perfect balance with a rich peanut butter flavor, a satisfying chew from the oats, and a fun crunch from the M&M’s, making them undeniably irresistible!​

Read the Recipe: Best Monster Cookies

6. Monster Cookies [butternutbakeryblog.com]

These Monster Cookies are thick, soft, and packed with oats, peanut butter, chocolate candies, and chocolate chips, making every bite a delightful treat! No refrigeration needed—simply mix and bake for huge, gooey cookies with a rich flavor boosted by a secret ingredient: molasses for extra chewiness and depth.

Read the Recipe: Monster Cookies [butternutbakeryblog.com]

7. Monster Cookies VI

These Monster Cookies VI are loaded with oatmeal, chocolate chips, peanut butter, and colorful M&M’s, making every bite a fun and tasty adventure. Simply mix all the ingredients, scoop onto a baking sheet, and bake at 350°F for 12 to 15 minutes—delicious, chewy cookies that everyone will love!

Read the Recipe: Monster Cookies VI

8. Giant Monster Cookies

These Giant Monster Cookies are enormous, soft, and chewy treats packed with peanut butter, oatmeal, chocolate chips, and M&M’s, perfect for satisfying any sweet tooth. Made easily in one bowl by hand, each cookie boasts about half a cup of dough, creating a thick, hand-sized wonder that’s both fun to make and absolutely delicious!

Read the Recipe: Giant Monster Cookies

9. Gluten-free Monster Cookies

These gluten-free monster cookies are irresistibly chewy and loaded with peanut butter, gluten-free oats, chocolate, and colorful M&M’s, making them perfect for a quick snack or after-school treat. They’re flourless and super easy to make—simply mix your ingredients, scoop out palm-sized cookies, bake until golden, and enjoy![/END_CONTENT]

Read the Recipe: Gluten-free Monster Cookies

10. Gluten-Free Monster Cookies

These gluten-free monster cookies are a fun, irresistible treat packed with peanut butter, oats, chocolate chips, and M&M’s, making each bite both chewy and chocolatey. The best part? The dough is flourless and super easy to make, so you can whip up these delicious cookies in just 15 minutes!

Read the Recipe: Gluten-Free Monster Cookies

11. Monster Cookies [www.twopeasandtheirpod.com]

Monster Cookies are an amazing mashup of oats, peanut butter, chocolate chips, and M&M’s, creating a cookie that’s loaded with flavor and fun! These cookies are easy to make, coming together quickly with simple ingredients, and are perfect for satisfying any sweet tooth.

Read the Recipe: Monster Cookies [www.twopeasandtheirpod.com]

12. Absolutely Massive Monster Cookies

These absolutely massive Monster Cookies are loaded with crispy toasted oats, creamy peanut butter, and a colorful mix of M&Ms and chocolate chunks. They come together super quickly—no chilling needed—making them perfect for satisfying any cookie craving with their soft, chewy, and insanely tasty goodness!

Read the Recipe: Absolutely Massive Monster Cookies

13. Gluten Free Monster Cookies

These Gluten Free Monster Cookies are thick, gooey, and packed with goodies like peanut butter, chocolate chips, and M&M’s, making them a fun and delicious treat for any occasion! With just a 10-minute prep, you can easily mix, scoop, and bake these chewy cookies, perfect for enjoying with loved ones, even offering a dairy-free option if needed.

Read the Recipe: Gluten Free Monster Cookies

14. Soft and Chewy Monster Cookies

These soft and chewy monster cookies are packed with chocolate chips, M&M’s, salty peanut butter, and oats, creating a perfect blend of textures and flavors. Made easily with the creaming method, they’re ready to bake without chilling, resulting in delicious, elevated cookies that are sure to wow!

Read the Recipe: Soft and Chewy Monster Cookies

15. bakery-style monster cookies

Bake these bakery-style monster cookies for a thick, crispy-edged, soft-centered treat loaded with peanut butter, oats, M&Ms, and chocolate chips. The easiest part? The no-chill, one-bowl dough comes together quickly, resulting in gorgeous, giant cookies that taste as great as they look!

Read the Recipe: bakery-style monster cookies

16. Monster Cookies [crisco.com]

Imagine mixing brown sugar, granulated sugar, and Crisco® shortening until smooth, then stirring in eggs, peanut butter, and a splash of vanilla for a rich, nutty aroma. Scoop and form large cookies with chunks of chocolate chips and oats, bake until golden, and enjoy the irresistible crunch and melt-in-your-mouth goodness—cookie perfection in just about 11 minutes![/END_CONTENT]

Read the Recipe: Monster Cookies [crisco.com]