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+ servings
Frosted Halloween Cookie Bars on a white plate.
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Halloween Cookie Bars

Topped with frosting and fun sprinkles, these yummy cookie bars are always a huge hit!
Course Dessert
Cuisine American
Keyword halloween cookie bars
Prep Time 20 minutes
Cook Time 15 minutes
45 minutes
Total Time 1 hour 20 minutes
Servings 24
Author Ang Paris

Ingredients

Cookie Bars

  • ½ cup butter
  • ½ cup brown sugar
  • ½ cup granulated sugar
  • 1 large egg
  • 2 teaspoons vanilla extract
  • 2 tablespoons milk
  • 2 cups all purpose flour
  • ½ cup cocoa powder
  • 1 teaspoon baking powder
  • ½ teaspoon salt

Frosting

  • ½ cup unsalted butter
  • ½ teaspoon vanilla extract
  • 6 tablespoond heavy cream
  • pinch salt
  • 4 cups powdered sugar
  • orange gel food coloring
  • Halloween sprinkles

Instructions

Cookie Bars

  • In an electric mixer fitted with a paddle attachment, cream together the room temperature butter with the white and brown sugar.
    ½ cup butter, ½ cup brown sugar, ½ cup granulated sugar
  • Beat in the egg, milk, and vanilla extract.
    1 large egg, 2 teaspoons vanilla extract, 2 tablespoons milk
  • In a large bowl, whisk together the dry ingredients.
    2 cups all purpose flour, ½ cup cocoa powder, 1 teaspoon baking powder, ½ teaspoon salt
  • Gradually add the dry ingredients into the batter. Scrape down the sides of the bowl as needed.
  • Grease a 9x13 pan and transfer the batter into the prepared pan using a rubber spatula.
  • Bake at 350F for 12-15 minutes until cooked through. Cool completely before frosting.

Frosting

  • In an electric mixer fitted with the whisk attachment, beat the butter until light and fluffy.
    ½ cup unsalted butter
  • Mix in the vanilla, salt, and cream.
    ½ teaspoon vanilla extract, 6 tablespoond heavy cream, pinch salt
  • Incorporate the powdered sugar a little at a time until the frosting is your desired consistency.
    4 cups powdered sugar
  • Add a little bit of the orange gel food coloring until you have the color your want.
    orange gel food coloring
  • Spread the frosting in an even layer on top of the bars, then add sprinkles.
    Halloween sprinkles