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Ultimate Chewy Christmas Cookie Bars with M&Ms and Sprinkles

A thick square of chewy christmas cookie bars topped with colorful candies and white chocolate chips.

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Make your holiday baking simple and festive with these ultimate chewy Christmas cookie bars. They are packed with colorful M&Ms and sprinkles, offering rich, buttery flavor in a single-pan dessert that requires no scooping.

Ingredients

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  • 1 cup unsalted butter, softened
  • 1 cup packed light 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 cup holiday M&Ms (red and green)
  • 1/2 cup white chocolate chips
  • 1/2 cup festive Christmas sprinkles

Instructions

  1. Preheat your oven to 350°F (175°C). Line a 9×13 inch baking pan with parchment paper, leaving an overhang for easy removal.
  2. In a large bowl, cream together the softened butter, brown sugar, and granulated sugar 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. Gently fold in the holiday M&Ms and white chocolate chips.
  6. Press about two-thirds of the cookie dough evenly into the bottom of the prepared baking pan.
  7. Sprinkle the festive Christmas sprinkles evenly over the dough layer.
  8. Take the remaining one-third of the dough and crumble it evenly over the top of the sprinkle layer. Gently press down slightly so the crumbs adhere.
  9. Bake for 25 to 30 minutes, or until the edges are lightly golden brown and the center is set.
  10. Let the bars cool completely in the pan on a wire rack before lifting them out using the parchment paper overhang.
  11. Slice into squares and serve your easy holiday cookie bars.

Notes

  • For the chewiest texture, ensure your brown sugar is packed firmly when measuring.
  • You can prepare this dough ahead of time and store it covered in the refrigerator for up to 2 days before baking.
  • If you want a slightly thicker bar, use an 8×8 inch pan, but adjust the baking time, checking for doneness around 35-40 minutes.

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