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Monster Cookies with Peanut Butter

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If you are looking for an easy recipe for monster cookies with peanut butter and all the mix-ins, this has become one of our family’s favorite cookies. 

Ingredients

Units Scale
  • 3/4 cup butter
  • 1/2 cup sugar
  • 1 cup brown sugar
  • 2 eggs
  • 1 teaspoon vanilla
  • 1 teaspoon baking soda
  • 1/2 cup creamy peanut butter
  • 2 cups flour
  • 1 1/2 cups old fashioned oats
  • 1 cup semi-sweet chocolate chips
  • 1 cup M&Ms
  • 1/2 cup peanut butter chips

Instructions

  1. Preheat the oven to 350 degrees.
  2. In your mixer, cream together butter with the brown sugar and white sugar.
  3. Add eggs, vanilla and baking soda.
  4. Add in peanut butter and mix until all ingredients are combined.
  5. Slowly add in flour next. Add flour a half cup at a time until all the flour is mixed into the cookies. (Adding the flour before the oats helps eliminate flour flying everywhere! Trust me. #LessonLearned)
  6. Next, add in the old fashioned oats to your cookie dough and mix until your dough is ready for the adds in.
  7. Add in chocolate chips, peanut butter chips and M&Ms. You can stir by hand or continue to use the mixer (like I prefer to do).
  8. Once your mix-ins are mixed in, scoop the cookies onto an ungreased cookie sheet using a medium size cookie scoop (around 2 tablespoons).
  9. Press a couple of extra M&Ms into the top of the cookie dough before baking, if you choose.
  10. Bake at 350 degrees for 9 minutes. Some would say 9 to 11 minutes, but I always err on the lower side for these cookies because a soft monster cookie is what makes these cookie so delicious!
  11. Remove cookies to a cooling rack and allow to cool completely before storing or freezing in an air-tight container.
  12. Enjoy your delicious monster cookies!