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Monster Cookies l SimplyScratch.com #monstercookies #cookies #oatmeal #candy #chocolate #halloween #baking #cookierecipe

Monster Cookies

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Monster Cookies are jammed packed with goodies like; oatmeal, peanut butter, chocolate chips and m&m candies! The ultimate cookie loaded with delicious flavor and texture.
Course Desserts & Sweet Treats
Cuisine American
Keyword baking, candy, chocolate, cookies
Prep Time 10 mins
Cook Time 42 mins
Total Time 52 mins
Servings 30 cookies
Calories 222
Author Laurie McNamara


  • 2-1/2 cups old fashioned rolled oats
  • 1 cup unbleached all-purpose flour
  • 1/2 cup whole wheat flour
  • 2 teaspoons baking soda
  • 1/2 teaspoon kosher salt
  • 1 cup (2 sticks) unsalted butter softened to room temperature
  • 1 cup peanut butter crunchy
  • 3/4 cup dark brown sugar
  • 3/4 cup granulated sugar
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1 cup milk chocolate chips
  • 1-1/2 cups M&M candies


  • Preheat your oven to 350° and line a rimmed metal baking sheets with parchment or silicone mats.
  • Combine oats, flours, baking soda and salt in a bowl. Then set off to the side.
  • In the bowl of your stand mixer, fitted with the padle attachment, add the softened butter, peanut butter and both sugars. Mix until ight and creamy.
  • Add in one egg at a time, adding 1 teaspoon vanilla extract with the final egg.
  • Then add in half of the oat and flour mixture, mixing until just combined. Repeat with the remaining oat/flour mixture.
  • Mix in the chocolate chips and then fold in the M&M's by hand using a spatula.
  • Use a 3-tablespoon scoop to measure out each cookie. Space 10 scoops of cookie dough a few inches apart on the prepared pan. Bake on the middle rack of your preheaetd oven for 12 to 14 mintues (rotating halfway through).
  • Once the edges are golden, remove and transfer to a wire cooling rack and repeat with remaing dough.


Serving: 1cookie | Calories: 222kcal | Carbohydrates: 23g | Protein: 4g | Fat: 13g | Saturated Fat: 6g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 4g | Trans Fat: 1g | Cholesterol: 31mg | Sodium: 162mg | Potassium: 91mg | Fiber: 1g | Sugar: 16g | Vitamin A: 223IU | Vitamin C: 1mg | Calcium: 19mg | Iron: 1mg