Patriotic Sugar Cookie Bars (Printable Version)
Buttery sugar cookie bars crowned with red, white, and blue buttercream and sprinkles—festive, sliceable, and crowd-ready.
# What You'll Need:
→ Sugar Cookie Bar Base
01 - 1 cup unsalted butter, softened
02 - 1 1/4 cups granulated sugar
03 - 2 large eggs
04 - 2 teaspoons pure vanilla extract
05 - 2 1/2 cups all-purpose flour
06 - 1/2 teaspoon baking powder
07 - 1/2 teaspoon salt
→ Frosting
08 - 1/2 cup unsalted butter, softened
09 - 2 cups powdered sugar, sifted
10 - 1/4 cup heavy cream or milk
11 - 1 teaspoon pure vanilla extract
12 - Red gel food coloring
13 - Blue gel food coloring
→ Decoration
14 - Red, white, and blue sprinkles
# How to Make It:
01 - Preheat oven to 350°F. Line a 9 x 13-inch baking pan with parchment paper and lightly grease.
02 - In a large bowl, beat unsalted butter and granulated sugar until pale and fluffy, about 2 to 3 minutes using an electric mixer.
03 - Incorporate eggs one at a time, mixing well after each addition. Blend in vanilla extract.
04 - In a separate bowl, whisk together all-purpose flour, baking powder, and salt.
05 - Gradually add dry ingredient blend to wet mixture, mixing just until combined.
06 - Evenly press dough into prepared baking pan, smoothing top with a spatula.
07 - Bake on the center rack for 18 to 22 minutes, until edges are lightly golden and center is set. Do not overbake.
08 - Allow bars to cool completely in the pan set on a wire rack before frosting.
09 - In a clean bowl, beat softened butter until smooth and creamy. Gradually mix in powdered sugar, then add vanilla extract and heavy cream. Beat on high for about 2 minutes until light and fluffy.
10 - Divide frosting evenly among three bowls. Leave one plain for white, tint one batch red and the other blue with gel food coloring.
11 - Dollop colored frostings across cooled bars. Swirl gently with an offset spatula for a marbled look or frost in sections for a striped effect.
12 - Top immediately with red, white, and blue sprinkles.
13 - Cut into 24 bars and serve at room temperature.
# Expert Tips:
01 -
- The frosting marbling always turns out gorgeous even if youre rushing or distracted by the kids.
- They stay soft for days and dont dry out, so guests can grab one hours after the party starts and still smile.
02 -
- If you overbake, the bars lose their soft bite, so pull them at the first hint of golden edges.
- Let bars cool completely before frosting, or you’ll end up with a sticky, sliding mess—I ruined my first batch learning this in a summer heatwave.
03 -
- A bit of almond extract makes the bars taste like bakery treats—just a splash in the dough does the trick.
- For sharp edges and vibrant color, use gel food dyes, not liquid.