Monster cookies

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There is nothing better than a good cookie, and these monster loaded cookies definitely fit perfectly. They are filled with tons of chocolate, oatmeal, and peanut butter and are adored by both children and adults.

I love monster cookies, they are all my favorite cookie flavors rolled in one hand! These monster cookies are the best I've ever had. I find that some monster cookies tend to be dry or hard, and my version comes out perfectly smooth and chewy every time.

How are monster cookies made?

This recipe begins like any other butter, flour and sugar cookie recipe. Oatmeal and peanut butter are added to the mix to make a thick cookie dough, and then the toppings are folded.

Traditional monster cookies are made with M&M and chocolate chips, which is what I have used here. Other great plugin ideas include

  • White chocolate chips
  • Chopped peanuts
  • grated coconut
  • Caramel bits

The dough is placed on a baking sheet and is ready to go into the oven. I like to press some extra M&M and chocolate chips on top of my cookie dough balls because then they look prettier when they come out of the oven.

These cookies don't spread very long, which means you'll end up with a thick, chewy cookie without a hint of dryness.

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Monster Cookie Tips

  • Use a cookie scoop or scoop measure to make sure all your cookies are the same size
  • Cookie dough can be stored in the refrigerator for up to 3 days before baking. If you plan to prepare your dough ahead of time, you can skip the M&M and add them just before baking so that the color of the candy doesn't stain the dough if it's in the fridge for a while.
  • These cookies freeze wonderfully. Place them in a single layer in a zip-lock freezer bag, then freeze until solid. Let the cookies sit at room temperature to thaw.

My kids request these monster cookies all the time, and I can't blame them. Between the soft and tasty cookie and tons of chocolate, how could anyone resist?

More great cookie recipes

  • Red velvet cookies
  • Haystack cookies
  • Funfetti cookies
  • Avalanche cookies
  • Unbaked Peanut Butter Cookies

Monster Cookies Video

Monster cookies

These monster cookies are soft, chewy peanut butter oatmeal cookies laden with chocolate chips and M&M. An easy and classic cookie that's perfect for parties, after-school snacks, and special occasions.

Preparation time: 10 minutes Cook time: 15 minutes Total time: 25 minutes

Servings: 24 servings Calories: 159kcal


  • 1/2 cup butter, softened
  • 3/4 cup brown sugar
  • 1/4 cup granulated sugar
  • 1 egg
  • 1/2 cup peanut butter I prefer creamy but crispy will work too
  • 1 teaspoon of vanilla extract
  • 1 cup all-purpose flour
  • 1/2 teaspoon of baking soda
  • 1 1/4 cups rolled oats
  • 1 cup M&M and more for the top of the cookies
  • 1/2 cup semi-sweet chocolate chips and more for cookie top


  • Preheat oven to 350 ° F.
  • Line a baking sheet with a piece of parchment paper or a silicone baking mat.
  • Place the butter, brown sugar, and granulated sugar in the mixer bowl. Whisk until fluffy, 1-2 minutes.
  • Add the egg, peanut butter, and vanilla to the bowl and mix until combined.
  • Add flour and baking soda to bowl and mix until combined. Add the oats.
  • Add the M&M and chocolate chips to the bowl and gently fold them into the batter.
  • Make 2 scoops of cookie dough the size of a tablespoon and place them 2 inches apart on the prepared tray. You will have to bake the cookies in batches.
  • Press a few M&M and chocolate chips on top of each cookie dough ball.
  • Bake 11-13 minutes or until edges are lightly browned.
  • Chill the cookies in the pan for 5 minutes, then transfer them to a wire rack to cool.
  • Repeat the process with the remaining cookie dough. Chill all cookies completely, then serve.
  • Store leftover cookies in a sealed container for up to 5 days, or you can freeze cookies for up to 2 months.


Adapted from Live Well Bake often.


Calories :: 159kcal | Carbohydrates: 18g | Protein: 2g | Fat: 8g | Saturated Fat: 3g | Cholesterol: 17mg | Sodium: 86mg | Potassium: 88mg | Fiber: 1g | Sugar: 10g | Vitamin A: 130 IU | Calcium: 15mg | Iron: 0.8mg

This post was originally sponsored by Capri Sun. This post originally came out on April 28, 2016 and was updated on February 5, 2019 with new content.

Monstrous cookies

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