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The Ultimate Chewy Christmas M&M Cookie Bars (Easy One-Pan Recipe)

Close-up of three thick, chewy christmas cookie bars topped with red and green M&Ms and festive sprinkles.
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Make the holidays sweet with these easy, chewy Christmas cookie bars loaded with holiday M&Ms and festive sprinkles. This one-pan recipe skips the scooping for stress-free holiday baking.

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 cup semi-sweet 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 on the sides for easy removal. Lightly grease the paper.
  2. In a large bowl, beat the softened butter, brown sugar, and granulated sugar together with an electric mixer until the mixture is light and fluffy, about 2 minutes.
  3. Beat in the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
  4. In a separate medium bowl, whisk together the flour, baking soda, and salt.
  5. Gradually add the dry ingredients to the wet ingredients, mixing on low speed until just combined. Do not overmix the dough.
  6. Gently fold in the holiday M&Ms, chocolate chips, and most of the festive sprinkles, reserving a small amount for the top.
  7. Press the cookie dough evenly into the prepared 9×13 inch pan. Sprinkle the remaining reserved sprinkles over the top.
  8. Bake for 22 to 25 minutes, or until the edges are lightly golden brown and the center is set. The bars should still look slightly soft in the middle for a chewy texture.
  9. Let the bars cool completely in the pan on a wire rack before lifting them out using the parchment paper overhang.
  10. Once cool, slice into squares. These are the best chewy Christmas blondies for your party.

Notes

  • For extra gooey Christmas cookie squares, slightly underbake them by 1-2 minutes. They will firm up as they cool.
  • You can substitute the M&Ms with your favorite holiday candy or extra chocolate chips for a different flavor profile.
  • This recipe makes a large batch, perfect for Christmas dessert for parties or as gifts.

Nutrition

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