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+ servings
4 monster cookies stacked next to a glass of milk
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5 from 1 vote

Jumbo Monster Cookies

Jumbo monster cookies are chewy on the inside, crispy on the outside. Peanut butter, m&ms, oats, and chocolate chips. Absolutely perfect and made without flour!
Course Dessert
Cuisine American
Keyword peanut butter, m&m, oatmeal peanut butter, peanut butter M&M, monster cookies
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Servings 18 cookies
Calories 476kcal


  • 3 eggs
  • 1 1/2 cup packed brown sugar
  • 1 cup white sugar
  • 1 teaspoon vanilla extract
  • 1 teaspoon corn syrup
  • 2 teaspoon baking soda
  • 1/2 cup butter
  • 1 1/2 cup peanut butter
  • 4 1/2 cup rolled oats
  • 1 cup semisweet chocolate chips
  • 1 cup candy-coated milk chocolate
  • pieces


  • Preheat oven to 350 degrees F (175 degrees C).
  • In a very large bowl, beat the eggs.
  • Add the remaining ingredients in order, mixing well. Dough will be wet and sticky.
  • Use a 1/3 measuring cup or ice cream scoop to put on ungreased cookie sheet. Bake for 15 minutes.
  • Let cookies stand on baking sheet for 3-5 minutes before transferring to wire cooling rack.



I always let the cookies rest on the baking sheet a few minutes before transferring to a wire rack to cool. Otherwise they may fall apart while hot.


Calories: 476kcal