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M&M Chocolate Chip Bars

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These M&M Chocolate Chip Bars are thick, chewy squares studded with colorful candy and melty chocolate, perfect for baked treats.

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
  • 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.
  2. Line a 9×13-inch baking pan with parchment paper.
  3. In a bowl, whisk together the flour, cornstarch, baking soda, and salt.
  4. In another bowl, combine the melted, cooled butter with the brown sugar and granulated sugar until smooth.
  5. Add the eggs and vanilla to the butter mixture; mix until glossy.
  6. Pour the wet mixture into the dry ingredients; stir until just combined.
  7. Gently fold in the M&Ms and chocolate chips.
  8. Transfer the dough to the prepared pan, smoothing it evenly.
  9. Bake for 26 to 30 minutes, until lightly browned.
  10. Allow to cool for at least one hour before lifting out and cutting into squares.

Notes

Tips: Use room temperature eggs; adjust baking time for chewier or firmer bars.

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