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M&M Cookie Bars Recipe

4.8 from 118 reviews

Delicious and colorful M&M Cookie Bars that combine soft, chewy cookie dough with crunchy M&M candies and mini chocolate chips. These bars are easy to make and perfect for sharing at parties, potlucks, or as a fun dessert treat.

Ingredients

Scale

Dry Ingredients

  • 3 cups all-purpose flour
  • 3/4 teaspoon baking powder
  • 3/4 teaspoon baking soda
  • 3/4 teaspoon salt

Wet Ingredients

  • 1 cup butter, room temperature
  • 3/4 cup granulated sugar
  • 1 cup light brown sugar
  • 2 eggs
  • 2 teaspoons vanilla extract

Mix-ins

  • 1 heaping cup M&M candies
  • 1/2 cup mini chocolate chips

Instructions

  1. Preheat Oven: Preheat your oven to 350 degrees Fahrenheit to prepare for baking your cookie bars.
  2. Prepare Pan: Line a 9 x 13-inch baking pan with parchment paper and set aside to prevent sticking and ensure easy removal.
  3. Mix Dry Ingredients: In a medium bowl, combine the all-purpose flour, baking powder, baking soda, and salt. Set this mixture aside for later.
  4. Cream Butter and Sugars: In a large mixing bowl or using a stand mixer, beat together the room temperature butter, granulated sugar, and light brown sugar until the mixture becomes creamy and well combined.
  5. Add Eggs and Vanilla: Add the eggs and vanilla extract to the creamed mixture and mix until fully incorporated.
  6. Combine Dry and Wet Ingredients: Gradually add the dry ingredient mixture to the wet ingredients, mixing until just combined without overmixing.
  7. Add Mix-ins: Stir in the mini chocolate chips and M&M candies evenly throughout the dough.
  8. Press Dough into Pan: Transfer the dough into the prepared baking pan and press it down into an even layer for uniform baking.
  9. Bake: Bake the bars in the preheated oven for 22 to 35 minutes, or until a toothpick inserted into the center comes out clean, indicating they are fully baked.
  10. Cool and Cut: Remove the pan from the oven and let the bars cool completely. Once cooled, lift the bars out using the parchment paper edges and cut into squares for serving.

Notes

  • Make Ahead Instructions: The cookie dough can be prepared and stored in the refrigerator for 2-3 days before baking.
  • Freezing Instructions: After baking and cooling, cut the bars into squares and store them in a freezer-safe container or bag for up to 3 months. The cookie dough can also be frozen for up to 3 months for future use.
  • Recipe Variations: Add chopped walnuts or pecans for a nutty crunch. Substitute mini chocolate chips with peanut butter or white chocolate chips as preferred.

Keywords: M&M Cookie Bars, cookie bars, easy dessert, chocolate chip cookie bars, party dessert, colorful cookies