Halloween Cookie Bars make a fun bake sale, party treat, or family dessert and are easily customized for other types of parties and special occiasions, too!
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Halloween chocolate cookie bars are the perfect treat when you con't want to spend all afternoon baking individual cookies.
With buttercream frosting and festive sprinkles, these tasty cookie bars are a good way to save time because they can be made a day or two ahead of your Halloween party.
🧂 Ingredients
This is meant to be a brief overview of this great recipe. For step-by-step instructions and a full printable recipe card with ingredients, please scroll down to the teal box below or Jump to Recipe.
You probably already have these simple ingredients for the chocolate cookie bars in your pantry:
- butter
- brown sugar
- granulated sugar
- egg
- vanilla
- milk
- all purpose flour
- cocoa powder
- baking powder
- salt
For the frosting: butter, vanilla, heavy cream, salt, powdered sugar, orange gel food coloring, Halloween sprinkles
🔪 Instructions
- In an electric mixer fitted with a paddle attachment, cream together the room temperature butter with the white and brown sugar.
- Beat in the egg, milk, and vanilla extract.
- In a large bowl, whisk together the dry ingredients.
- 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 cookied through.
🥄Equipment
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In addition to Measuring Spoons and Dry Measuring Cups, here is what you will need to make this easy recipe:
- 9x13 Baking dish
- Stand Mixer OR hand mixer
- Rubber Spatula and Whisk
- Mixing Bowls
Note: I recommend gel food coloring because the color is more vibrant and it won't add moisture to your buttercream.
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⭐ Tips
✔️ Allow the bars to cool completely before frosting.
✔️ For clean cuts, run your knife under hot water for 30 seconds, then dry it before slicing.
🍲 Storage
To Store: Store leftovers in an airtight container for 4-5 days.
📖 Recipe Variations
The first time you try any new recipe we recommend that you make it just as it is written on the recipe card since that is how the recipe has been tested. However, the next time you make our recipe, you might want to try one of these ideas:
- sprinkle mini chocolate chips, white chocolate chips, or even peanut butter chips into the batter before baking
- to make these into Halloween candy cookie bars, top with your favorite candies like reese's pieces, m&m candies, or chop up your favorite candy bars like kit kats, snickers etc.
- look for candy eyes in your local grocery store's cake aisle for a fun 'spooky' addition
🎉 Holiday Variations
These bars can easily be dressed up for any holiday or special occasion.
Simply change the color of the frosting and use sprinkles that match your party theme. Chocolate cookie bars are great for birthdays, graduation parties, and more. Try pastel frosting and sprinkles for Easter or a baby shower. Think pink frosting with red and white sprinkles for Valentine's day. You could even do red, white, and blue for the 4th of July. Your imagination is the limit!
🍴 Serving Suggestions
These cookie bars would be a great addition to our Halloween snack board along with some Halloween chocolate covered strawberries, and Halloween cookies.
😋 Similar Recipes
Next time, try one of these delicious recipes:
🎃More Halloween Ideas
- Halloween mummy bowling
- Frozen Elsa cape costume
- OREO cheesecake parfait
- Teal Pumpkin Project DIY decorations
Not ready to make these Halloween cookie bars yet?
When you do make it, please come back and comment and leave me a ⭐⭐⭐⭐⭐ rating below!
Halloween Cookie Bars
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Equipment
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
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