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easy monster cookies. m&m cookies top down view of cookies piled on a pale blue plate. background is scattered with colorful m&m's

Easy Monster Cookies

Heather Wolf
Super soft and chewy, these Monster Cookies are chock-full of all your favorite flavors. Made with M&M's, peanut butter, oatmeal and chocolate chips, this 4-in-1 cookie may be more addictive than crack.
5 from 2 votes
Prep Time 10 minutes
Cook Time 11 minutes
Chill 30 minutes
Total Time 51 minutes
Course Cookies and Bars
Cuisine American
Servings 24 cookies

Equipment

  • Large cookie scoop

Ingredients
  

  • 1/2 cup light brown sugar
  • 1/4 cup granulated sugar
  • 8 Tbsp unsalted butter room temperature
  • 3/4 cup creamy peanut butter *not all-natural
  • 2 large eggs room temperature
  • 1 1/2 tsp vanilla extract pure
  • 1/2 tsp baking soda fresh
  • 1 1/4 cup all-purpose flour unbleached
  • 1/4 tsp sea salt fine
  • 1/2 cup quick oats
  • 1 cup M&M's divided
  • 3/4 cup semi-sweet chocolate chips

Instructions
 

  • Using an electric mixer, cream sugars and butter for 2 to 3 minutes until light and fluffy.
  • Mix in peanut butter.
  • Beat in eggs one at a time. Scrape sides of bowl as needed.
  • Beat in vanilla. Set aside.
  • In a separate bowl whisk together baking soda, flour and salt.
  • Slowly add dry ingredients to wet. Mix on low speed until just combined.
  • Using a spoon, stir in quick oats, 3/4 cup of M&M's and chocolate chips.
  • Cover bowl with plastic wrap and chill in the refrigerator for 30 minutes.
  • Preheat oven to 350 degrees. Line 2 cookie sheets with parchment and set aside.
  • Scoop chilled dough with a large, 2.5 Tablespoon cookie scoop then place dough balls on cookie sheets spaced 2 inches apart.
  • Bake for 11 to 12 minutes until edges are slightly golden and centers are still soft.
  • Remove cookies from oven and top with remaining M&M's
  • Allow cookies to cool on the baking sheet for 10 minutes then transfer to a wire rack to cool completely.
  • Store cookies in an airtight container at room temperature for up to a week.
Keyword chocolate chip, cookie, M&M, monster cookies, oatmeal, peanut butter