Yield: 24 bars

M&M'S Chocolate Chip Cookie Bars

Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes

Chewy M&M's Chocolate Chip Cookie Bars are thick and delicious and perfect when you need a quick dessert. Perfect for holidays and bake sales too!


  • 1 cup unsalted butter, softened
  • 1 cup granulated sugar
  • 1 cup light brown sugar, packed
  • 2 large eggs
  • 1 large egg yolk
  • 2 tsp vanilla extract
  • 3 cups all-purpose flour
  • 1 tsp baking soda
  • 1 tsp cornstarch
  • 1 tsp kosher salt
  • 1 ½ cups semi-sweet chocolate chips
  • 1 ½ cups M&M's candies (any color or variety)


  1. Preheat oven to 350 degrees F. Line a 13x9 baking dish with parchment paper (or foil). Set aside.
  2. In a large bowl, combine butter and sugars until well blended. Add in eggs, egg yolk, and vanilla extract. Mix until combined.
  3. Add in flour, baking soda, cornstarch, and kosher salt just until combined. Fold in chocolate chips and M&M's.
  4. Press cookie dough into baking dish.
  5. Bake 35 minutes until lightly browned. Remove and cool completely.
  6. Store in airtight container for up to 3 days.

Nutrition Information:



Serving Size:

1 bar

Amount Per Serving: Calories: 316Total Fat: 15gSaturated Fat: 9gTrans Fat: 0gUnsaturated Fat: 5gCholesterol: 53mgSodium: 171mgCarbohydrates: 44gFiber: 1gSugar: 30gProtein: 4g

*Nutrition facts are an estimate and not guaranteed to be accurate. Please see a registered dietitian for special diet advice

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