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Best Monster Cookies
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5 from 3 votes

Best Monster Cookies

These delicious Monster Cookies are so soft, thick and chewy, you won't be able to resist their charm!  If you love peanut butter oatmeal cookies loaded up with m&m's and chocolate chips, then these are the cookies for you!  We made them special to celebrate the 4th of July!  Simple and festive!
Prep Time10 minutes
Cook Time11 minutes
Course: Dessert
Keyword: chocolate chips, classic cookies, cookies, M&Ms, monster cookies, oatmeal, oats, peanut butter
Servings: 30 Servings
Calories:
Author: Kim Lange

Ingredients

  • ½ cup unsalted butter softened
  • ½ cup peanut butter we used Jif no sugar added, it's delicious! Can also use crunchy
  • ¾ cup brown sugar
  • ¼ cup sugar
  • 1 large egg
  • 1 teaspoon vanilla
  • 1 ¼ cups flour
  • ½ cup quick oats or old-fashioned rolled oats use gluten-free oats if desired
  • 1 teaspoon baking soda
  • ¼ teaspoon salt
  • 1 cup m&m candies we used red white and blue! Add more to the tops before baking!
  • ½ cup milk chocolate chips we used ChocZero milk chocolate chips
  • Other add-ins: raisins nuts, dried fruits, peanut chocolate chips, etc.

Instructions

  • Preheat oven to 350 degrees and line a cookie sheet with parchment paper.
  • Using a mixer, cream together the butter, peanut butter, and sugars until light and fluffy. Beat in the egg and vanilla.
  • In a medium bowl, whisk together the flour, oats, baking soda, and salt. Gradually add to the creamed mixture and beat until well combined.
  • Stir in the m&m candies and chocolate chips and any other add-ins you want.
  • Using a 2 tablespoon scoop or drop spoonfuls of dough onto baking sheet 2 inches apart and flatten slightly with the back of a spoon or leave as is if you want thicker. Bake for 11-12 minutes. If smaller 1 tablespoon cookies, 8 minutes, if larger cookie scoop (1/4 cup), 15-18 minutes.
  • Let the cookies set on the baking sheet for 5-10 minutes to set up before transferring to a wire cooling rack. Cookies will crumble if moved before setting up time. Enjoy!!!

Notes

For a special treat, make monster ice cream sandwich cookies by taking 2 cookies and adding a scoop of ice cream in between and roll them in some sprinkles or mini chocolate chips for summer fun!