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5 from 3 votes

Christmas M & M Cookie Bars

These Christmas M & M Cookie Bars are the perfect Christmastime sweet treat! Gooey, soft, and fluffy cookie bars packed with both chocolate chips AND M &M's!!
Prep Time5 mins
Cook Time25 mins
Total Time30 mins
Servings: 24
Author: The Cookin' Chicks


  • 2 cups flour
  • 1/2 tsp salt
  • 1/2 tsp baking soda
  • 10 tbsp butter
  • 3/4 cup brown sugar
  • 1/4 cup white sugar
  • 1 egg
  • 2 tsp vanilla extract
  • 1 cup chocolate chips (I use semisweet but any work)
  • 1 cup M & M's, divided (use Christmas colors if going for a festive look)


  • Preheat oven to 325 degrees and grease a 9 x 13 baking pan.
  • In a small bowl, melt the butter in the microwave. Set aside to allow to cool slightly.
  • In a medium bowl, combine the flour, salt, and baking soda. 
  • Add the brown sugar, white sugar, egg, and vanilla extract to the melted butter.
  • Once combined, slowly add in the flour mixture and stir until just combined.
  • Fold in the chocolate chips and 1/2 cup of M & M's.
  • Spread dough evenly into prepared pan.
  • Sprinkle remaining M & M's on top of spread dough and lightly press into dough.
  • Place pan in preheated oven and bake for about 25-30 minutes.
  • Remove from oven and allow to cool slightly before slicing and serving!
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