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Gluten Free Monster Cookies

Gluten free monster cookies are a flourless take on the classic favorite cookie. These easy peanut butter oat cookies feature m&m’s and mini chocolate chips so that there is chocolate in every bite!

monster cookies stacked on a cooling rack

Monster cookies are always a hit cookie and typically made with peanut butter, m&m’s and chocolate chips.

We love eating monster cookie energy balls and monster cookie bars too!

These cookies take all those flavors, but instead create a flourless monster cookie made instead with gluten free rolled oats.

My flourless peanut butter oatmeal chocolate chip cookies are still one of my most popular cookies and my gluten free peanut butter cookies are another favorite.

I love peanut butter and oat recipes, like my gluten free cookie bars. Oats are a great way to add texture and chewiness to gluten free desserts.

a hand taking a monster cookie with a bite out of it from a stack of cookies

Flourless Monster Cookies Ingredients

  • Creamy Peanut Butter: the no stir variety
  • Vanilla Extract
  • Eggs
  • Pure Maple Syrup
  • Brown Sugar
  • Gluten Free Rolled Oats: if you are not gluten free, regular rolled oats will be fine. If you are cooking for someone with a gluten intolerance, it is best to buy specifically marked gluten free oats.
  • Baking Soda
  • Mini Chocolate Chips: I love using mini chocolate chips for chocolate in every bite.
  • M&M’s: I used full sized, but mini ones would work too
  • Salt: just a touch to accent the sweetness of the cookies
gluten free monster cookie ingredients lined up

How to make Gluten Free Monster Cookies

Step 1: Mix together the eggs, creamy peanut butter, brown sugar, maple syrup, and vanilla extract until combined.

peanut butter mixed together

Step 2: Add in the gluten free rolled oats, baking soda, and salt, and stir to combine.

Step 3: Fold in the mini chocolate chips and m&m’s into the monster cookie batter.

Step 4: Shape the cookies onto the baking sheet. They will not change shape or rise much. Top with more m&m’s, if desired.

gluten free monster cookies on a baking sheet

Step 5: Bake the monster cookies at 350 degrees for 12 – 15 minutes, until lightly browned on the tops.

Allow the cookies to rest on the pan for 5 minutes, then transfer to a wire cooling rack.

Be careful not to over bake the cookies, as they will continue to cook on the pan.

flourless monster cookies on a wire cooling rack

Are you making this recipe? I want to see! Don’t forget to tag me on instagram @buildyourbite and hashtag #buildyourbite with your recipe creations!

Yes! If you wanted to, you could easily freeze the cookie dough to have fresh baked monster cookies on hand for any time the craving strikes.

To freeze cookie dough, roll it into balls and place on wax paper inside an airtight container or ziploc bag.

You can cook frozen cookie dough from frozen, just add a few extra minutes onto cook time.

If you have never tried this, I highly recommend it! I love being able to grab cookie dough straight from my freezer and have homemade fresh baked cookies in minutes.

Be sure to pin this recipe for later and follow Build Your Bite on Pinterest for all the latest delicious recipes!

monster cookies stacked

These gluten free monster cookies are a family favorite and my kids go crazy for them!

Did you make this recipe? Be sure to leave a star rating below!

monster cookies stacked on a cooling rack

Gluten Free Monster Cookies

Yield: 18 cookies
Prep Time: 20 minutes
Cook Time: 15 minutes
Total Time: 35 minutes

These gluten free monster cookies are made flourless with gluten free oats. Filled with all the classic monster cookie ingredients, mini chocolate chips, and m&m's!


  • 1 cup creamy no stir peanut butter
  • 2 teaspoons vanilla extract
  • 2 eggs
  • 2 tablespoons pure maple syrup
  • 1 cup gluten free rolled oats
  • ½ cup brown sugar
  • ½ teaspoon salt
  • ½ teaspoon baking soda
  • ½ cup mini chocolate chips
  • ½ cup m&m's


  1. Beat together the peanut butter, eggs, maple syrup, brown sugar, and vanilla extract in a large mixing bowl
  2. Add in the gluten free oats, baking soda, and salt and mix until combined
  3. Fold in the mini chocolate chips and m&m’s 
  4. Form the batter into cookies on the pan (they won’t rise or change shape much) and top with more m&m’s on top if you want
  5. Bake cookies at 350 degrees for 11-14 minutes, until lightly browned. Allow the monster cookies to rest on the pan 5 minutes, then transfer to a cooling rack
Nutrition Information:
Yield: 18 Serving Size: 1
Amount Per Serving: Calories: 187Total Fat: 11gSaturated Fat: 3gTrans Fat: 0gUnsaturated Fat: 6gCholesterol: 21mgSodium: 176mgCarbohydrates: 20gFiber: 2gSugar: 14gProtein: 5g

Did you make this recipe?

Be sure to tag me on instagram @buildyourbite and hashtag #buildyourbite with your recipe creations!

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Wednesday 19th of July 2023

Delicious! My granddaughter and I both are gluten free and these really hit the sweet spot! We love to make them together.

Joy Shull

Monday 24th of July 2023

So glad you enjoyed the recipe!

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