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+ servings

M&M Christmas Cookie Bars

Course Dessert
Cuisine American
Keyword Christmas Cookie Bars, Cookie Bars, M&M Cookie Bars
Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Servings 24 -36 depending on size cut
Calories 324 kcal


  • 2 sticks salted butter at room temperature
  • 1 cup granulated sugar
  • 1 cup golden brown sugar firmly packed
  • 3 large eggs at room temperature
  • 1 1/2 teaspoons pure vanilla extract
  • 3 cups all-purpose flour
  • 3/4 teaspoon baking soda
  • 3/4 teaspoon salt
  • 1 1/2 cups Christmas M&M's plus more for topping
  • 1 cup mini chocolate chips plus more for topping
  • 1/2 cup white chocolate chips for topping


  1. Preheat oven to 350 degrees.
  2. Line a 9x13 aluminum pan with foil. Leave some overhang to make removal easier.

  3. Spray foil generously with nonstick cooking spray.
  4. In the bowl of a stand mixer, beat butter, granulated sugar, and brown sugar together until fluffy.
  5. Add in eggs and vanilla extract and continue to beat.
  6. Lower speed of mixer and add flour, baking soda and salt and mix until combined.
  7. Add M&M's and mini chocolate chips and give a final stir, reserving some M&M's, mini chocolate chips and white chocolate chips for topping cookie bars.
  8. Transfer cookie dough to prepared baking dish.
  9. Press additional M&M'S, mini chocolate chips and white chocolate chips into top of cookie dough.
  10. Bake 35 minutes on middle rack of oven, or until cookie bars are light golden brown and just set. Do not over bake. Cookie bars will continue to bake as they cool.

  11. Let cool completely and cut. Store tightly covered.

Nutrition Facts
M&M Christmas Cookie Bars
Amount Per Serving
Calories 324 Calories from Fat 126
% Daily Value*
Fat 14g22%
Saturated Fat 9g56%
Trans Fat 1g
Polyunsaturated Fat 1g
Monounsaturated Fat 3g
Cholesterol 47mg16%
Sodium 203mg9%
Potassium 51mg1%
Carbohydrates 46g15%
Fiber 1g4%
Sugar 32g36%
Protein 4g8%
Vitamin A 316IU6%
Vitamin C 1mg1%
Calcium 47mg5%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.