
Sugar cookie bars topped with tangy frosting and festive sprinkles have turned into my favorite Halloween treat to share at parties and school gatherings. These bars are soft and buttery with a thick layer of whipped frosting tinted a playful orange. Baking this recipe will fill your kitchen with sweet aromas and set the perfect tone for spooky celebrations.
The first time I made these for a Halloween classroom event the tray was empty before I could even finish cleaning up. My little ones now ask for them every October and love picking out which sprinkles to use.
Ingredients
- Salted butter: Softened for both dough and frosting creates a rich taste and tender crumb look for high fat content for best flavor
- Granulated sugar: For classic sweetness and helps the cookie base set choose a fine texture for easier blending
- Vanilla extract: Boosts that bakery style aroma try to find real vanilla for depth
- Egg: Binds the dough for chewy bars use a room temperature egg for even mixing
- All-purpose flour: Gives structure to the bars sift if possible for soft texture
- Baking powder: Helps the bars puff gently check expiry for best lift
- Powdered sugar: In the frosting ensures a smooth spread always sift to prevent lumps
- Heavy cream: Creates fluffy frosting and adds richness opt for cold cream for best results
- Orange food coloring: Optional but brightens up the frosting use gel for bolder color
- Sprinkles: Optional for fun and crunch I like to use a mix of jimmies and nonpareils with Halloween colors
Instructions
- Prepare the Pan:
- Line a nine by thirteen inch baking pan with parchment paper letting it overhang slightly for easy removal. Lightly press corners to avoid creasing.
- Cream Butter and Sugar:
- Beat softened butter with granulated sugar in a large mixing bowl. Start on medium speed and continue for about three minutes until the mixture turns pale and fluffy. Scrape the sides often to ensure everything is evenly blended.
- Mix Wet Ingredients:
- Add in vanilla extract and the egg to the creamed butter and sugar mixture. Mix on medium speed just until smooth. Avoid overmixing here to keep the cookies tender.
- Add Dry Ingredients:
- Gradually incorporate flour and baking powder into the wet mixture. Use low speed so you do not overwork the dough. Mix just until a soft but thick dough forms.
- Shape and Bake:
- Press cookie dough evenly into the lined baking pan with clean hands or a spatula. Level the top as much as possible. Bake in preheated oven at three hundred fifty degrees Fahrenheit for fourteen to sixteen minutes. Watch for very pale tops and light golden edges.
- Cool the Bars:
- Remove the baked cookie bars from the oven and let them cool completely in the pan. If rushed the frosting will melt so be patient during this step.
- Make the Frosting:
- In a fresh bowl beat softened butter until creamy then gradually mix in powdered sugar and vanilla extract. Add heavy cream and continue beating until the frosting reaches a soft spreadable consistency and stiff peaks begin to hold.
- Color and Decorate:
- Add orange food coloring in small drops blending until the color is bold and even. Frost the cooled bars generously with the orange frosting using an offset spatula. Scatter Halloween sprinkles evenly across the top for maximum festive effect.
- Slice and Serve:
- Allow the frosting to set for at least fifteen minutes. Use the parchment overhang to lift the bars then use a sharp knife to slice into squares of desired size. Serve right away or store for later.

My favorite part is licking the bowl after coloring the frosting and seeing the vibrant orange take shape. Each year I have a snapshot of my kids arranging sprinkles and giggling about their unique designs.
Storage Tips
Once frosted keep bars in an airtight container at room temperature for up to three days for the freshest texture. For longer keeping wrap and refrigerate for up to a week letting them sit at room temp before serving to soften the frosting. If you plan to make ahead wait to add sprinkles until shortly before serving to keep them crisp.
Ingredient Substitutions
If salted butter is not available use unsalted and add a scant pinch of salt to both dough and frosting. For dairy free options substitute plant based butter and coconut cream. Food coloring gels create the most vivid color but you can use a natural juice like carrot for a more subtle look.
Serving Suggestions
Arrange the bars on a rustic board surrounded by marshmallow ghosts and candied eyeballs for a striking dessert platter. They look especially cute with themed cupcake picks or tucked into party treat bags. The bars also stack beautifully for bake sales.
Cultural Moment
Sugar cookies have a long history of being shaped and dressed up for holidays. In American kitchens it is tradition to frost and decorate them with the family and these bars are a playful shortcut making it easy to prep a big batch in less time. Each square is like a little celebration on its own.
Seasonal Adaptations
Change up the color of the frosting to match any holiday Add pumpkin pie spice or cinnamon to the dough for a fall twist Swap out sprinkles for sparkling coarse sugar or mini candy eyes
Success Stories
My neighbor once tripled this recipe to serve at a block party and came back with an empty tray and a flood of requests. These bars have also been a lifesaver for last minute classroom snacks and always photograph beautifully for memory books.
Freezer Meal Conversion
Freeze unfrosted bars wrapped tightly for up to two months. Simply thaw overnight at room temp before frosting and decorating. This makes it easy to prep early and frost fresh for Halloween night.

Try making these at least once with your family and you will see how quickly they disappear and become a new holiday tradition. Each time I bake them the scent and color set off an instant sense of nostalgia for cozy October days.
Common Recipe Questions
- → How do I achieve the soft texture in the bars?
Creaming butter and sugar thoroughly and not overbaking preserves a soft, chewy crumb.
- → Can I use unsalted butter instead of salted?
Yes, but add a pinch of salt to balance the sweetness if using unsalted butter.
- → What is the best way to color the frosting?
Add drops of orange food coloring gradually until achieving the desired festive hue.
- → How should I store the frosted bars?
Keep bars in an airtight container at room temperature for up to three days for optimal freshness.
- → Can I use different types of sprinkles?
Absolutely! Use any sprinkles to customize the look for Halloween or other occasions.
- → Should the bars be completely cooled before frosting?
Yes, letting bars cool ensures the frosting spreads smoothly and won't melt.