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–+ servings
A tray of monster cookies with M&M candies sprinkled about.

Gluten-Free Monster Cookies

These gluten-free monster cookies are loaded with oats, chocolate chips, M&Ms, and creamy peanut butter making them a treat everyone will love!
5 from 3 votes
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Course: Dessert
Cuisine: American
Diet: Gluten Free
Prep Time: 10 minutes
Cook Time: 12 minutes
Total Time: 22 minutes
Servings: 24 cookies
Calories: 272kcal
Author: Megan

Ingredients

  • 1 cup creamy peanut butter
  • 1/2 cup unsalted butter (at room temperature)
  • 1 cup granulated sugar
  • 1/2 cup brown sugar (packed)
  • 2 large eggs
  • 1 teaspoon pure vanilla extract
  • 2 teaspoon baking soda
  • 3 cups oats (use purity protocol or gluten-free certified oats)
  • 1 cup chocolate chips
  • 1 cup M&Ms

Instructions

  • Preheat oven to 350F. Line two baking sheets with parchment paper. Set aside.
  • In a large bowl, cream together peanut butter, unsalted butter, granulated sugar and brown sugar until light and fluffy, about 2 minutes.
  • Add in the eggs and mix until combined.
  • Mix in the vanilla extract and baking soda until combined.
  • Mix in the gluten-free oats until well incorporated.
  • Then, stir in the chocolate chips and M&Ms until evenly distributed.
  • With a cookie scoop, place the dough onto the prepared baking sheets, leaving at least 2 inches between each cookie.
  • Bake at 350F for 10-12 minutes, switching the baking pans halfway through the bake time, or until the edges are golden brown.
  • Let cool on the baking sheet for 5 minutes and then transfer to a wire rack to finish cooling.

Notes

  • Not all oats are considered gluten-free because they are often grown in fields that co-mingle with wheat. I used purity protocol oats, which have very strict standards and are grown in fields that have not grown gluten for a specific amount of years. 
  • To make this recipe dairy-free, use vegan butter, dairy-free chocolate chips, and dairy-free chocolate candy pieces instead of M&Ms. 
  • Are all M&M’s gluten-free? M&M’s do not label their products as gluten-free. However, they will label any allergens and even label certain varieties that “may contain wheat”. The milk chocolate M&Ms do not contain wheat and are considered safe for those with celiac disease. 
  • Use creamy peanut butter for best results. Do not use runny, natural peanut butter as it will make these cookies spread too much and a bit too oily.
  • Don’t overbake these cookies. Bake until the edges are lightly browned and then leave on the cooling rack for a few minutes where they will continue to set.

Nutrition

Calories: 272kcal | Carbohydrates: 33g | Protein: 5g | Fat: 14g | Saturated Fat: 6g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 4g | Trans Fat: 1g | Cholesterol: 26mg | Sodium: 159mg | Potassium: 119mg | Fiber: 2g | Sugar: 24g | Vitamin A: 174IU | Vitamin C: 1mg | Calcium: 36mg | Iron: 1mg
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