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M&M Cookie Bars

Buttery, chewy, and packed with melty chocolate and crunchy candy shells, these M&M cookie bars are the perfect fuss-free dessert that's loved by both kids and adults.
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Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 16 bars
Course: Dessert, Snack
Cuisine: American
Calories: 250
Ingredients Method Notes

Ingredients
  

Base Ingredients
  • 1 cup unsalted butter, softened Make sure it's at room temperature.
  • 1 cup light brown sugar, packed Provides a rich flavor.
  • 1/2 cup granulated sugar
  • 2 large eggs, room temperature
  • 2 teaspoons vanilla extract For flavor enhancement.
  • 2 1/4 cups all-purpose flour Measure carefully.
  • 1 teaspoon baking soda For leavening.
  • 1/2 teaspoon fine salt Enhances flavors.
Mix-ins
  • 1 cup M&Ms, plus extra for topping Add more for a decorative finish.
  • 3/4 cup semi-sweet chocolate chips Mix of chocolates is recommended.

Method
 

Preparation
  1. Preheat the oven to 350°F (175°C). Line a 9x13 inch pan with parchment paper, leaving some overhang for easy lifting.
  2. Cream the softened butter and both sugars until fluffy, about 2 minutes. Mix in the eggs and vanilla extract until smooth.
  3. In a separate bowl, whisk together the flour, baking soda, and salt. Gradually add the dry ingredients to the wet mixture, mixing just until combined.
  4. Fold in the M&Ms and chocolate chips, ensuring the dough is thick. Press the dough evenly into the prepared pan.
  5. Scatter additional M&Ms on top for a decorative finish.
Baking
  1. Bake in the preheated oven for 20 to 25 minutes, until the edges are set and the center looks barely done.
  2. Allow the bars to cool in the pan on a rack for at least 1 hour before slicing into squares or bars.

Notes

For neat edges, chill the baked bars for 30 minutes before slicing. They can be stored in an airtight container for 3 to 4 days.