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Easy Christmas M&M Cookie Bars

Close-up of stacked, chewy Christmas cookie bars loaded with red and green M&Ms, white chocolate chips, and holiday sprinkles.
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Make these simple, chewy Christmas cookie bars loaded with festive M&Ms and sprinkles. This one-pan treat is perfect for stress-free holiday baking and sharing.

Ingredients

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  • 1 cup unsalted butter, softened
  • 1 cup packed brown sugar
  • 1/2 cup granulated sugar
  • 2 large eggs
  • 1 tablespoon vanilla extract
  • 2 1/4 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 1/2 cups Christmas M&Ms (red, green, and brown)
  • 1 cup white chocolate chips
  • 1/2 cup festive Christmas sprinkles

Instructions

  1. Preheat your oven to 350 degrees F. Line a 9×13 inch baking pan with parchment paper, leaving an overhang on the sides for easy removal.
  2. In a large bowl, beat the softened butter, brown sugar, and granulated sugar together until the mixture is light and fluffy.
  3. Beat in the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
  4. In a separate bowl, whisk together the flour, baking soda, and salt. Gradually add the dry ingredients to the wet ingredients, mixing on low speed until just combined. Do not overmix.
  5. Fold in the Christmas M&Ms, white chocolate chips, and most of the festive sprinkles, reserving some for the top.
  6. Spread the cookie dough evenly into the prepared baking pan. Sprinkle the remaining sprinkles over the top.
  7. Bake for 22 to 25 minutes, or until the edges are set and lightly golden. The center should still look slightly soft.
  8. Let the bars cool completely in the pan on a wire rack before lifting them out using the parchment overhang.
  9. Once cool, slice the bars into squares. These are best enjoyed soft and chewy.

Notes

  • For extra chewy Christmas blondies, slightly underbake them by one or two minutes.
  • You can make these no chill cookie bars ahead of time and store them covered at room temperature for up to three days.
  • If you prefer a frosted look, use a simple vanilla glaze over the cooled bars instead of extra sprinkles.

Nutrition

Find it online: https://littlekitchendiary.com/easy-christmas-cookie-bars-recipe/