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+ servings
a stack of peanut butter monster cookies

Monster Cookie Recipe

5 from 5 votes
Servings 24 cookies
Prep: 20 minutes
Cook: 12 minutes
Chill Time 1 hour
Total: 1 hour 32 minutes
A delicious combination of peanut butter, oats, chocolate chips and M&Ms, all in one easy cookie!

Ingredients
 

  • 1/2 cup butter (softened)
  • 3/4 cup light brown sugar (firmly packed (dark also works))
  • 1 tsp vanilla extract
  • 1 large egg
  • 3/4 cups creamy peanut butter
  • 1/2 cup all-purpose flour
  • 1/2 tsp baking soda
  • 1 tsp cornstarch
  • 1 cup rolled oats
  • 1/2 cup plain M&Ms
  • 1/2 cup semi-sweet chocolate chips

Instructions
 

  • In a large mixing bowl, cream the butter and sugar for about 4 minutes or until creamy and pale. Add the vanilla and beat again. Then add the egg and beat until smooth. Add the peanut butter and beat until combined.
  • In a separate bowl, sift the flour, baking soda, cornstarch and gently whisk together. Then add the dry ingredients to the wet and gently fold together. Add the rolled oats, M&M's and chocolate chips and stir until combined. 
  • Cover the bowl with plastic wrap and refrigerate for at least one hour.
  • Line two oven trays with baking paper. Preheat the oven to 350 F.
  • Grab cookie dough from the fridge. The dough will still be a bit sticky but it should be firm enough to roll balls using your hands.
  • Line the balls (approximately 1 heaped tablespoon) of cookie dough onto the prepared trays and then flatten slightly using your hand or a spatula, as they wont spread out as much as a normal cookie would. Press a few extra M&M’s and chocolate chips on top if desired.
  • Bake the cookies for approximately 12 minutes or until golden brown on the edges. Leave the cookies to cool slightly before gently moving to a wire rack to cool completely.

Notes

These cookies can be made small or large, whatever you prefer. 
Storage – Store these covered in an airtight container at room temperature for about 3 days, or in the freezer for 3 months.

Nutrition

Calories: 178kcalCarbohydrates: 18gProtein: 3gFat: 11gSaturated Fat: 5gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gTrans Fat: 0.2gCholesterol: 19mgSodium: 96mgPotassium: 95mgFiber: 1gSugar: 12gVitamin A: 141IUVitamin C: 0.03mgCalcium: 21mgIron: 1mg

The nutrition facts provided are calculated using a third-party tool and are estimates only. Actual nutritional content may vary based on the ingredients and brands you use, as well as portion sizes. For accurate results, please consult a registered dietitian or nutritionist.

Course Dessert
Cuisine American