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M&M Chocolate Chip Bars

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These M&M Chocolate Chip Bars are an irresistible cross between a classic cookie and a chewy bar, loaded with chocolate and colorful candy.

  • Author: daniel-kim
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Total Time: 45 minutes
  • Yield: 12 servings 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

Scale
  • 2 and 3/4 cups all-purpose flour
  • 1 and 1/2 teaspoons cornstarch
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 cup unsalted butter, melted and cooled for 5 minutes
  • 1 cup packed light or dark brown sugar
  • 1/2 cup granulated sugar
  • 2 large eggs, at room temperature
  • 2 teaspoons pure vanilla extract
  • 1 and 1/4 cups mini or regular-size M&Ms
  • 3/4 cup semi-sweet chocolate chips

Instructions

  1. Preheat the oven to 350°F (177°C) and position the oven rack in the center of the oven.
  2. Line a 9×13-inch baking pan with parchment paper, leaving an overhang on two sides.
  3. In a medium bowl, whisk together the flour, cornstarch, baking soda, and salt.
  4. In a separate large bowl, stir the melted butter with brown sugar and granulated sugar until smooth.
  5. Add the eggs and vanilla extract to the butter mixture, mixing until fully incorporated.
  6. Pour the wet mixture into the dry ingredients and stir until just combined.
  7. Gently fold in M&Ms and chocolate chips until evenly distributed.
  8. Transfer the dough to the prepared pan and smooth into an even layer.
  9. Bake for 26 to 30 minutes, or until lightly browned.
  10. Allow the bars to cool in the pan for at least one hour before lifting out and cutting into squares.

Notes

Measure flour accurately to avoid dense bars. Store in an airtight container for up to 4 days.

Nutrition