Go Back
+ servings
orange buttercream frosted chocolate cookies stacked on white plate
Print Recipe
No ratings yet

Halloween Cookie Bars

Halloween Cookie Bars have a delicious chocolate cookie bar bottom and creamy orange buttercream frosting on top. Add some festive sprinkles to complete the perfect Halloween treat.
Prep Time20 mins
Cook Time15 mins
Total Time35 mins
Course: Dessert
Cuisine: American
Keyword: Halloween cookie bars
Servings: 24 servings
Calories: 258kcal



  • ½ cup butter softened
  • ½ cup brown sugar
  • ½ cup sugar
  • 1 egg
  • 2 tsp. vanilla
  • 2 Tbsp milk
  • 2 cups all-purpose flour
  • ½ cup cocoa powder
  • 1 tsp. baking powder
  • ½ tsp salt
  • ½ cup chocolate chips optional


  • ½ cup butter softened
  • ½ tsp vanilla
  • 6 Tbsp heavy cream
  • ¼ tsp salt
  • 4 cups confectioner's sugar
  • orange gel food coloring
  • Halloween Sprinkles


  • Preheat oven to 375
  • Grease a 9 x 13 baking pan (or spray with cooking spray)
  • With an electric mixer beat together butter, brown sugar, and white sugar until light and fluffy.
  • Add in the egg, vanilla, and milk and continue to mix until well incorporated.
  • In a separate bowl combine flour, cocoa, baking powder and salt. Stir with a whisk until well blended and fluffy.
  • Gradually add the dry ingredients into the butter mixture mixing well after each addition.
  • If chocolate chips are desired fold them into the dough.
  • Press the mixture into your prepared pan until it is nice and even.
  • Bake for 12-15 minutes or until dough appears set. Don’t overbake or cookies will be dry, they will continue to set as they cool. Baking times may vary depending on if your pan is metal or glass.
  • Allow cookies to cool completely before frosting.

To make the frosting:

  • Whip butter with an electric mixer until light and fluffy. Add in vanilla, salt, and cream. Continue to mix until well incorporated.
  • Add in powdered sugar gradually mixing after each addition until all the powdered sugar has been incorporated and the mixture is nice and fluffy.
  • Add in a few drops of orange food coloring and mix. Add additional food coloring until desired color is achieved.
  • Spread frosting evenly across cooled cookie bars, sprinkle with sprinkles.
  • Cut into 24 squares and serve.
  • Store leftovers in an airtight container.


Calories: 258kcal | Carbohydrates: 41g | Protein: 2g | Fat: 10g | Saturated Fat: 7g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 1g | Cholesterol: 33mg | Sodium: 150mg | Potassium: 76mg | Fiber: 1g | Sugar: 31g | Vitamin A: 312IU | Vitamin C: 1mg | Calcium: 28mg | Iron: 1mg