Ultimate Monster Cookies Recipe


5 from 1 vote
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These ultimate monster cookies are filled with oats, chocolate chips, peanut butter, and M & M’s and are so easy!

Ultimate Monster Cookies Recipe from addapinch.com

I always think of these monster cookies during summer. I’m not sure if it is because my sister and I would help Mama make them before friends came over to play or if it is because I’ve kind of continued the tradition of making them for Sam and his friends. They are packed full of flavors that we loved growing up and Sam and his friends love just as much as we did!

But seriously? What’s not to love in these things? I’ve certainly not found anything!

Every single bite is filled with deliciousness!

This recipe makes about two dozen medium size cookies, using a two tablespoon cookie scoop, but can easily be halved if you want to make just a few or doubled or tripled even if you are making them for a party or a large group.

I love doubling the recipe, making half to bake immediately and then portion out the remainder, flash freezing on the cookie tray in the freezer for about 15 minutes and then placing them into a zip top bag in the freezer to use later. Then, you can simply remove however much of the frozen cookie dough you need for a bake and serve cookie in a jiffy!

Easy, peasy!

Here’s how I make my Ultimate Monster Cookie recipe. I hope you love them as much as we all do!

Ultimate Monster Cookies Recipe

5 from 1 vote
These ultimate monster cookies are filled with oats, chocolate chips, peanut butter, and M & M’s and are so easy!
Prep Time: 10 minutes
Cook Time: 15 minutes
Total Time: 25 minutes
Servings: 24


  • 1/2 cup (113 g) butter, softened to room temperature
  • 3/4 cup (203 g) peanut butter, creamy
  • 1 cup (220 g) brown sugar, packed
  • 1 cup (213 g) granulated sugar
  • 2 large (100 g) eggs
  • 1 1/2 teaspoons (7 g) vanilla extract
  • 1/2 cup (60 g) all-purpose flour
  • 1 teaspoon (6 g) baking soda
  • 1/2 teaspoon (2 g) baking powder
  • 1/2 teaspoon (1 g) kosher salt
  • 2 cups (178 g) rolled oats
  • 2 cups (340 g) chocolate chips, milk, semi-sweet, or dark
  • 1 cup (164 g) candy-coated chocolate pieces, like M&M’s


  • Preheat oven to 350º F. Line rimmed baking sheets with parchment paper or nonstick silicone baking mats. Set aside.
  • Cream together butter, peanut butter, brown sugar and granulated sugar until light and fluffy. Add eggs, one at a time, until well combined. Stir in vanilla, flour, baking soda, baking powder, salt, and oats until well combined. Then stir in chocolate chips and candies.
  • Scoop cookie dough, using about a 2-tablespoon scoop or a heaping tablespoon, and drop onto prepared pans. Bake for 12-14 minutes, until lightly golden brown. Remove from oven and allow to cool before removing from the pan. Store in an airtight container up to a week.


Calories: 308kcal | Carbohydrates: 42g | Protein: 5g | Fat: 14g | Saturated Fat: 7g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 3g | Trans Fat: 1g | Cholesterol: 27mg | Sodium: 189mg | Potassium: 107mg | Fiber: 2g | Sugar: 33g | Vitamin A: 191IU | Vitamin C: 1mg | Calcium: 49mg | Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Robyn xo

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About Robyn

Robyn Stone is a cookbook author, wife, mom, and passionate home cook. Her tested and trusted recipes give readers the confidence to cook recipes the whole family will love. Robyn has been featured on Food Network, People, Southern Living, and more.

5 from 1 vote

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Recipe Review


  1. Simona Oliveri says:

    Great recipe! Add more flour for higher elevations, I needed to add almost 1/2 cup more of flour.

  2. Jenny says:

    5 stars
    I just made these but think I may have done something wrong? Flavor is great but they did not spread when baking to look like the picture and the batter is pretty dry. 2 c. of flour and 2 c. of oats seems like a lot. Is this correct? Otherwise great recipe!

    1. Maggie says:

      1/2 cup flour. 🙂

  3. Gaby says:

    What is not to like!! My dad make some cookies like this growing up…so amazing when friends came over!!

  4. SHARON says:

    All can say is gurll

  5. Jocelyn (Grandbaby cakes) says:

    These cookies are seriously beyond amazing!

  6. Alice @ Hip Foodie Mom says:

    Monster cookies!!! I haven’t made these in forever! Love this recipe! baking these!

  7. Mary Frances says:

    Wow, these are indeed monster cookies! Perfect for nourishing my inner cookie monster, when it comes out. Thanks for sharing!

  8. Janet Aldridge says:

    Hey , Where’s that kitchen picture that I saw on here one time. It had white cabinets, a beverage area, some glass in the upper cabinets, etc…..I wanted to show Roger an idea for our home…..

  9. Heather - Butter & Burlap says:

    I feel like the cookie monster! I want all of these cookies all the time! Is it sad that I just recently discovered freezing the extra dough? I usually make all the cookies and get stuck eating them all… whoops 🙂

  10. Tori@Gringalicious.com says:

    Um…..yum! These look so chewy and delish!