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The Best Leftover Halloween Candy Cookie Bars Recipe

leftover Halloween candy cookie bars - featured image

These cookie bars are the ultimate solution to that post-Halloween candy mountain. Made with a buttery brown sugar cookie dough and loaded with chopped leftover candy, they come together in under 30 minutes with just one bowl and are always a crowd-pleaser.

Ingredients

Scale
  • 1/2 cup unsalted butter, softened
  • 3/4 cup packed light brown sugar
  • 1/4 cup granulated sugar
  • 1 large egg, room temperature
  • 1 teaspoon vanilla extract
  • 1 1/2 cups all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 2 cups chopped leftover Halloween candy (about 12–15 fun-sized pieces)

Instructions

  1. Preheat your oven to 350°F (175°C). Line your 8×8 baking pan with parchment paper, leaving an overhang on two sides.
  2. Chop your leftover Halloween candy into roughly 1/2-inch pieces. Set aside.
  3. In a large mixing bowl, beat the softened butter, brown sugar, and granulated sugar together until light and fluffy, about 2-3 minutes.
  4. Beat in the egg and vanilla extract until fully combined. Scrape down the sides of the bowl.
  5. In a separate small bowl, whisk together the flour, baking soda, and salt. Gradually add this to the wet mixture, mixing on low speed until just combined.
  6. Gently fold in the chopped candy with a spatula until evenly distributed.
  7. Transfer the dough to the prepared pan and press it into an even layer.
  8. Bake for 20-25 minutes, until the edges are golden brown and the center is set but still slightly soft.
  9. Let the bars cool in the pan for at least 20 minutes, then use the parchment overhang to lift them out. Transfer to a wire rack to cool completely before slicing.
  10. Slice into 9 or 16 squares using a sharp knife.

Notes

For best results, use chocolate-based candies like Snickers, Kit Kat, and Reese’s Peanut Butter Cups. Avoid hard candies or sticky fillings. The bars taste even better the next day. Store in an airtight container at room temperature for up to 5 days or freeze for up to 3 months.

Nutrition

Keywords: leftover Halloween candy, cookie bars, easy dessert, one bowl, potluck, party dessert