Menu
Cookies / Desserts / Recipes

Easy Monster Cookies

These easy monster cookies are chunky, chewy, and loaded with the perfect mix of sweet and salty. Peanut butter cookie dough base with oats, chocolate chips, chopped peanuts, and M&M’s mixed in! A classic favorite, these cookies can be as customizable as you want. They are also freezer friendly so I recommend making a double batch!

cookies laid on parchment paper
monster cookie dough

If you like these easy monster cookies, you’ll love…

Chewy Peanut Butter Oatmeal Chocolate Chip Cookies

Oatmeal Chocolate Chunk Cookies

Chewy Oatmeal Cookies

Oatmeal Cookie Sandwiches with Maple Ganache

warm gooey monster cookie

Simply make the cookie dough according to the recipe, scoop even sized amounts of dough onto a sheet pan and place in the freezer until hard. Transfer the cookie dough to an airtight container or freezer bag labeled with the date, type of cookie, and baking instructions. Keep in your freezer stash for 6-8 months. Remove desired amount when needed, bake, and enjoy! You may even want to make a double batch!

fresh baked monster cookie on parchment paper with a glass of milk

TOOLS I USED FOR THIS RECIPE:

  • USA Pan Half Sheet Pan – my go-to sheet pans, these are truly non-stick and clean up nicely.
  • KitchenAid 6 Qt. Stand Mixer – I always recommend a stand mixer as it saves time and helps to keep baked goods consistent.
  • Rubber Spatula – a must for any home baker! Perfect for scrapping cookie dough out of the mixing bowl.
  • Portion Scoops – my go to for getting even sized cookies that bake perfectly each time!

Grocery List:

  • Butter
  • Granulated sugar
  • Brown sugar
  • Peanut butter
  • Vanilla extract
  • Eggs
  • All-purpose flour
  • Salt
  • Baking soda
  • Old fashioned oats
  • Chocolate chips
  • M&M’s
  • Peanuts
up close of m&m cookies with sea salt

Instructions:

  • Line a cookie sheet with parchment paper, set aside. In a small mixing bowl combine the flour, baking soda, and salt, stir to combine.
  • In the bowl of a hand or stand mixer fitted with a paddle attachment cream together butter and sugars until fluffy, 3-4 minutes. Add in the peanut butter and mix to combine. Add in the eggs, one at a time, and the vanilla. Scrape down the sides of the mixer bowl. Slowly add in the dry ingredients until fully incorporated.
  • Gently fold in the oats, chopped peanuts, chocolate chips, and M&M’s. Cover and chill dough for 30 minutes. After dough has chilled preheat oven to 350 degrees F.
  • Use a portion scoop to scoop even sized scoops of cookie dough. Arrange 2 inches apart on the prepared cookie sheet.
  • Bake in a preheated 350 degree oven for 10-12 minutes until golden brown. Allow to cool slightly, transfer to cooling rack and cool completely. These will keep in an airtight container for up to a week!
cookies layered on parchment paper

Loaded Monster Cookies

5 from 3 votes
Course: Dessert
Keyword: Cookies, Monster Cookies
Prep Time: 20 minutes
Cook Time: 10 minutes
Chill Time 30 minutes
Total Time: 1 hour
Servings: 24 Cookies
Calories: 281kcal
Author: The Hearty Life
Cost: $
Print Recipe Pin Recipe

Equipment:

  • 1 oz. portion scoop, optional

Ingredients: 

  • 1 1/2 cups All-purpose flour
  • 1 tsp Baking soda
  • 1 tsp Salt
  • 1 cup Unsalted butter, softened
  • 1 cup Granulated sugar
  • 3/4 cup Light brown sugar
  • 1/2 cup Creamy peanut butter
  • 2 Eggs, room temperature
  • 1 tbsp Vanilla extract
  • 1 cup Old fashioned rolled oats
  • 1/2 cup Chopped peanuts
  • 1 cup Semisweet mini chocolate chips
  • 1 cup M&M's candy

Instructions:

  • Line a cookie sheet with parchment paper, set aside. In a small mixing bowl combine the flour, baking soda, and salt, stir to combine.
  • In the bowl of a hand or stand mixer fitted with a paddle attachment cream together butter and sugars until fluffy, 3-4 minutes. Add in the peanut butter and mix to combine. Add in the eggs, one at a time, and the vanilla. Scrape down the sides of the mixer bowl. Slowly add in the dry ingredients until fully incorporated.
  • Gently fold in the oats, chopped peanuts, chocolate chips, and M&M's. Cover and chill dough for 30 minutes. After dough has chilled preheat oven to 350 degrees F.
  • Use a portion scoop to scoop even sized scoops of cookie dough. Arrange 2 inches apart on the prepared cookie sheet.
  • Bake in a preheated 350 degree oven for 10-12 minutes until golden brown. Allow to cool slightly, transfer to cooling rack and cool completely. These will keep in an airtight container for up to a week!

Nutrition:

Serving: 1 serving | Calories: 281 kcal | Carbohydrates: 30 g | Protein: 4 g | Fat: 16 g | Saturated Fat: 8 g | Polyunsaturated Fat: 2 g | Monounsaturated Fat: 5 g | Trans Fat: 1 g | Cholesterol: 35 mg | Sodium: 176 mg | Potassium: 147 mg | Fiber: 2 g | Sugar: 19 g | Vitamin A: 261 IU | Calcium: 25 mg | Iron: 1 mg

Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.

easy monster cookie

Did you make this recipe?

I would love to see it! Take a picture and post to Instagram with the tag @theheartylife and the hashtag #theheartylife – You can also leave me a question or comment below! If you’ve tried this recipe, feel free to give it a star rating on the recipe above.