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4 ingredient - M&M Christmas Cookie Bars

M&M Christmas Cookie Bars

M&M Christmas Cookie Bars are an easy to make holiday dessert! Super soft & chewy goodies that only need 4 ingredients. Perfect for the busy holiday season.
Course Dessert
Cuisine American
Keyword bar recipes, M&M's
Prep Time 10 minutes
Cook Time 35 minutes
Servings 12 bars


  • 1 box vanilla cake mix
  • 2 large eggs
  • 1/2 cup butter - melted 1 stick
  • 2 cups holiday M&M’s


  • Preheat the oven to 350 degrees.
  • Grease a 9×9 pan & then line with parchment so that it hangs over on 2 sides for easy bar removal.
  • Mix together the cake mix, eggs & butter in a large bowl until well combined.
  • Fold in M&M’s.
  • Spread the dough into prepared pan & press into an even layer.
  • Bake 25-35 minutes or until the top is golden brown. Toothpick test should come out mostly clean.
  • Press additional M&M’s into the tops of the bars before they set.
  • Allow the bars to cool to room temperature before trying to remove from the pan or cut them.
  • Use the overhanging parchment to lift the bars out of the pan & cut to the desired size.