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M&M Cookie Bars Recipe

5 from 87 reviews

Deliciously chewy M&M Cookie Bars featuring a buttery, sweet base packed with chocolate chips and colorful M&Ms. These bars are perfect for a fun treat or dessert, easy to make with simple ingredients, and baked to golden perfection.

Ingredients

Scale

Wet Ingredients

  • 1/2 cup softened butter
  • 1/2 cup brown sugar
  • 1/4 cup white sugar
  • 1 tsp vanilla extract
  • 1 egg

Dry Ingredients

  • 1 cup all-purpose flour
  • 1/3 tsp baking soda
  • 1/3 tsp salt

Add-Ins

  • 1/2 cup chocolate chips
  • 1/2 cup M&Ms (divided, some reserved for topping)

Instructions

  1. Preheat Oven and Cream Butter and Sugars: Preheat your oven to 350°F (175°C). In a mixing bowl, combine the softened butter, brown sugar, and white sugar until the mixture is smooth and creamy.
  2. Add Vanilla and Egg: Beat the mixture well until fully incorporated. Add the vanilla extract and the egg, then beat again until the mixture is light and fluffy.
  3. Mix Dry Ingredients: In a separate bowl, combine the flour, baking soda, and salt. Gradually add this dry mixture to the wet ingredients, beating until just combined to form the cookie dough.
  4. Incorporate Chocolate Chips and M&Ms: Stir in the chocolate chips and most of the M&Ms, reserving some M&Ms to sprinkle on top before baking.
  5. Spread Dough in Pan: Evenly spread the cookie dough into an 8×6 inch (or 9×7 inch) baking pan. Then, sprinkle the reserved M&Ms over the top for a colorful finish.
  6. Bake: Bake in the preheated oven for 18–20 minutes, or until the surface turns a beautiful golden brown.
  7. Cool and Slice: Allow the cookie bars to cool completely in the pan. Once cooled, slice into squares and serve.

Notes

  • Softening the butter before mixing helps achieve a creamy texture for the cookie base.
  • You can substitute M&Ms with other candy-coated chocolates if preferred.
  • Use an 8×6 or 9×7 inch pan; baking time remains the same but ensure not to overbake to keep bars chewy.
  • For cleaner cutting, chill the bars slightly after cooling.
  • Store leftover bars in an airtight container at room temperature for up to 4 days.

Keywords: M&M cookie bars, easy cookie bars, chocolate chip cookie bars, chewy cookie bars, homemade dessert