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Stack of monster cookies on a brown plate.

Monster Cookies

These Monster cookies have it all- peanut butter, oats, M & M's and chocolate chips. Many of my favorite things in one glorious oversized cookie.
Prep Time 20 minutes
Cook Time 20 minutes
Total Time 40 minutes
Course Dessert
Servings 15 Cookies

Ingredients
  

  • 1 1/4 cup flour
  • 1 cup old fashioned rolled oats
  • 1 teaspoon baking soda
  • 1/2 cup butter softened
  • 3/4 cup brown sugar
  • 1/4 cup granulated sugar
  • 1/2 cup peanut butter see note
  • 1 egg
  • 1 teaspoon vanilla
  • 1 cup M & M's mix of regular, peanut, and peanut butter
  • 3/4 cup mini chocolate chips

Instructions
 

  • Preheat Oven: Preheat the oven to 350℉ and line two baking sheets with parchment paper.
  • Combine Dry Ingredients: In a small bowl, mix the flour, oats, and baking soda until well-combined.
  • Cream Butter and Sugar: In a large bowl, use a hand or stand mixer to cream together the butter and sugars until light and fluffy.
  • Add Peanut Butter, Egg, and Vanilla: Add the peanut butter and mix until well combined. Then add in the egg and vanilla mixing throughly.
  • Add Dry Ingredients: Pour in the flour and oat mixture. Mix on low until the dry ingredients are fully incorporated.
  • Stir in Add-In's: Gently fold in the M&M's and mini chocolate chips until they are evenly distributed.
  • Scoop: Using a large (3-tablespoon) cookie scoop or a scant 1/4 cup, portion the cookies and place them on the prepared sheets. about 3 inches apart.
  • Bake: Bake the cookies for about 20 minutes, until they are crisp and light golden brown on the edges. Rotate the pans halfway through baking. Remove from the oven and let cool on the pan for 5 minutes before transferring to a cooling rack.

Notes

•Use Jif or Skippy peanut butter for the best results.
•If the cookies need help spreading, tap the baking sheets on the counter halfway through baking.
•Baked cookies will keep for up to a week in an airtight container.
•Unbaked, portioned cookies can be frozen for up to three months. No need to thaw—bake directly from frozen and add about 5 extra minutes to the baking time.
Keyword Monster Cookies