uncut cookie bars on a cutting board

Halloween Candy Cookie Bars

  • Author: Melissa Griffiths - Bless this Mess
  • Prep Time: 15 min
  • Cook Time: 20 min
  • Total Time: 35 minutes
  • Yield: 9-16 bars 1x


A fun way to use leftover Halloween candy is to combine it to make thick and chewy cookies bars! They’ll turn out different every time, depending on what candy you add to the cookie dough.



  • 1/2 cup butter, melted
  • 1 cup brown sugar
  • 1 large egg
  • 2 teaspoons vanilla
  • 1 1/4 cups all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 to 1 1/2 cups chopped assorted Halloween Candy
  • Halloween sprinkles, optional


  1. Preheat the oven to 350 degrees F. and line a 9×9-inch baking dish with foil or parchment paper and grease well. 
  2. In a medium mixing bowl, add the melted butter and brown sugar. Stir to combine. 
  3. Add the egg and vanilla and beat very well until the mixture is light and puffy, about 2 minutes. 
  4. Add the flour, baking soda, and salt, and stir to combine. The dough won’t be as thick as traditional cookie dough.
  5. Chop the Halloween candy so that it’s in bite sized pieces, if needed. 
  6. Add half of the Halloween candy and stir to combine. 
  7. Press the dough evenly into the prepared pan.
  8. Sprinkle the remaining Halloween candy on top of the cookie dough. Sprinkle the top of the dough with sprinkles if using.
  9. Bake for 20-25 minutes or until golden brown and puffy. We bake them for 22 minutes on the dot every time and like that texture best. 
  10. Remove from the oven and allow to cool slightly before cutting, or let them cool completely and then use the foil or parchment to help remove them from the pan before cutting. 


  • You can double this recipe and bake it in a 9×13 inch pan for around 35 minutes. 
  • Feel free to use whatever Halloween candy you have on hand. I tend to stick with chocolatey candy like candy bars, M&M’s, Milk Dud’s, and we like anything with peanut butter in it! 
  • We don’t normally use fruit candy like Skittle or taffy, but you can sure try it if you like!
  • Category: dessert
  • Method: bake
  • Cuisine: American
Nutrition Information: YIELD: 16 SERVING SIZE: 1 piece
Amount Per Serving: Calories: 150.1 Fat: 6.5g Cholesterol: 26.9mg Sodium: 125.1mg Carbohydrates: 21.6g Sugars: 14g Protein: 1.6g Vitamin A: 53.7µg Vitamin C: 0mg

Keywords: cookie bars, Halloween candy cookie bars, leftover halloween candy, chocolate chip cookie bars, cookie bar recipe, chewy cookie bars