Go Back
Print
Monster Cookie Bars | Soft, chewy chocolate chip, peanut butter, oatmeal cookie bars with M&Ms and Oreos inside!

Monster Cookie Christmas Bars

Soft, chewy chocolate chip, peanut butter, oatmeal cookie bars with M&Ms and Oreos inside!
Author Isis

Ingredients

  • 1 1/2 cup flour
  • 3/4 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1 cup oats
  • 1/2 cup peanut butter
  • 1/2 cup butter melted
  • 1/2 cup granulated sugar
  • 1/2 cup brown sugar
  • 2 teaspoons vanilla
  • 2 eggs
  • 1/2 cup dark chocolate chunks
  • 1/2 cup M&Ms green and red
  • 1 cup chocolate sandwich cookies crushed (about 6 cookies)

Instructions

  1. Preheat oven to 350 degrees F
  2. Line a 9" x 13" pan with parchment paper
  3. Combine the flour, baking soda, salt and oats and set aside
  4. Beat the peanut butter, butter, sugar and brown sugar
  5. Mix in the vanilla and eggs
  6. Add the flour mixture and stir to combine
  7. Fold in the chocolate chunks, M&Ms and crushed cookies
  8. Spread evenly into the prepared pan
  9. Bake 20 - 30 minutes until slightly brown
  10. Cool completely in pan
  11. Cut and enjoy!