White dessert plate piled high with Christmas Cookie Bars

Christmas M&M Cookie Bars

Loaded with chocolate cookie pieces, white chocolate chips, and M&M's these Cookie Bars are so easy to make with a crunchy outside with a soft and sweet middle...what's not to love? 
Course Dessert, Holiday Treats, Snack
Cuisine American
Keyword Cookie Bars, Cookie Recipes, M&Ms
Prep Time 5 minutes
Cook Time 25 minutes
Total Time 30 minutes
Servings 16 bars


  • 6 tbsp Margarine can use butter as well
  • 1/2 cup Granulated Sugar
  • 1/4 cup Brown Sugar lightly packed
  • 1 Egg
  • 1 tsp Vanilla
  • 1 cup Flour All purpose
  • 1/2 tsp Baking Soda
  • pinch Salt
  • 1 cup M&M's Candy
  • 1 package Cookies n Cream Chipits (white chocolate chips with cookie pieces)


  • Grease an 8 x 8 baking pan and set aside. Preheat oven to 350 F. 
  • Beat margarine with sugars until light and fluffy. Add in egg and vanilla and beat on medium speed until fully combined. 
  • In a small bowl whisk together your dry ingredients (flour, salt, baking soda). Add to wet ingredients and mix to combine.
  • Stir in both chocolates only until mixed through (do not beat as you will break the pieces). 
  • Bake 22-27 minutes, until they are lightly golden. Allow to cool completely before cutting into bars.