4th Of July Sugar Cookie Bars

Soft 4th of July sugar cookie bars topped with creamy white frosting and colorful red white blue sprinkles for Independence Day Save Pin
Soft 4th of July sugar cookie bars topped with creamy white frosting and colorful red white blue sprinkles for Independence Day | noshtheory.com

These soft sugar cookie bars feature a tender vanilla base topped with fluffy buttercream frosting and patriotic sprinkles. Perfect for Independence Day celebrations, summer parties, and family gatherings. The bars come together quickly with just 20 minutes of prep time, and the colorful decoration makes them an eye-catching addition to any dessert table.

Last summer my neighbor called at 8am asking if I could "quickly make something red white and blue" for her block party. I panicked, grabbed my grandmother's sugar cookie recipe, and decided to cut corners by pressing the dough into a pan instead of rolling individual cookies. The mistake turned into my most requested July 4th treat.

My daughter helped decorate last year and decided to dump the entire container of sprinkles in one corner. We called it the fireworks effect and everyone actually asked for that corner piece. Now it is our signature touch.

Ingredients

  • All-purpose flour: Sifting prevents lumps and makes for a tender crumb that melts in your mouth
  • Baking powder and salt: The tiny lift and balance they provide makes all the difference between flat and puffy
  • Unsalted butter: Room temperature butter creates air pockets when creamed giving you that cloud like texture
  • Granulated sugar: Creaming this with the butter is the secret step you cannot rush
  • Egg and egg yolk: The extra yolk adds richness that keeps these bars soft for days
  • Vanilla and almond extract: The almond is optional but adds something nostalgic that people cannot quite place
  • Powdered sugar: Sifting this first prevents those tiny lumps in your frosting that everyone notices
  • Milk: Start with 2 tablespoons and add more only if you need it for spreading consistency
  • Sprinkles: Add these while the frosting is still slightly tacky so they actually stick

Instructions

Preheat your oven and prepare the pan:
Line your 9x13 pan with parchment paper and let the paper hang over the sides. This overhang becomes your handles later.
Whisk the dry ingredients together:
Flour baking powder and salt need to be fully combined before they meet the butter.
Cream butter and sugar until pale:
This takes about 3 minutes and you will notice the mixture turns lighter in color and fluffy.
Add the eggs and extracts:
Beat in the whole egg then the yolk followed by both extracts. The mixture should look glossy and smooth.
Combine wet and dry ingredients:
Mix on low speed until you no longer see white flour streaks. Do not overmix or the bars will be tough.
Press the dough into the pan:
Use your hands or a spatula to press the dough evenly into the corners. The dough will be sticky.
Bake until barely golden:
18 to 20 minutes is perfect. The edges should just start turning color and the center will still look soft.
Cool completely:
This is the hardest part. Let them cool in the pan for at least an hour before frosting.
Make the frosting:
Beat the butter creamy then gradually add powdered sugar and milk until fluffy and spreadable.
Frost and decorate:
Spread the frosting evenly and add sprinkles immediately. Cut into 16 squares using the parchment to lift them out.
Patriotic sugar cookie bars with fluffy vanilla frosting and festive sprinkles, perfect for summer Fourth of July celebrations and parties Save Pin
Patriotic sugar cookie bars with fluffy vanilla frosting and festive sprinkles, perfect for summer Fourth of July celebrations and parties | noshtheory.com

Last year I made these for a July 4th picnic and my brother claimed he could taste childhood in every bite. That description still makes me smile every time I measure the almond extract.

Getting the Texture Right

The perfect sugar cookie bar walks a line between cake and cookie. Underbaking slightly gives you that fudgy center while the edges stay crisp. If your oven runs hot check at 16 minutes.

Frosting Like a Pro

Room temperature ingredients are nonnegotiable for silky frosting. If your butter is too cold you will get air pockets. Too warm and the frosting slides right off the cooled bars.

Make Ahead and Storage

You can bake the bars a day before frosting and store them wrapped tightly at room temperature. The frosting actually improves after a few hours as it sets into the cookie surface.

  • Frost the day of serving for the brightest sprinkles
  • Stack between parchment paper if transporting
  • These freeze beautifully unfrosted for up to a month

Homemade 4th of July sugar cookie bars featuring smooth buttercream frosting decorated with red white and blue sprinkles on a golden baked base Save Pin
Homemade 4th of July sugar cookie bars featuring smooth buttercream frosting decorated with red white and blue sprinkles on a golden baked base | noshtheory.com

Hope these become your new July 4th tradition just like they became mine.

Recipe FAQs

Yes, prepare the dough and refrigerate it for up to 2 days before baking. Let it come to room temperature for about 15 minutes before spreading in the pan.

Store in an airtight container at room temperature for up to 3 days. If your kitchen is particularly warm, refrigerate them to prevent the frosting from softening too much.

Freeze unfrosted bars wrapped tightly in plastic and foil for up to 3 months. Thaw overnight at room temperature, then frost and decorate before serving.

A 9×13-inch baking pan creates the perfect thickness for these bars. The parchment paper overhang makes it easy to lift them out for clean, even cutting.

The edges should be lightly golden while the center remains slightly soft. A toothpick inserted in the center should come out with moist crumbs but not wet batter.

Yes, substitute the all-purpose flour with a 1:1 gluten-free flour blend. The texture may be slightly denser but still delicious.

4th Of July Sugar Cookie Bars

Soft, colorful bars with creamy vanilla frosting and festive red, white, and blue sprinkles.

Prep 20m
Cook 20m
Total 40m
Servings 16
Difficulty Easy

Ingredients

Cookie Bars

  • 2 1/4 cups all-purpose flour
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon salt
  • 3/4 cup unsalted butter, softened
  • 1 cup granulated sugar
  • 1 large egg
  • 1 large egg yolk
  • 2 teaspoons pure vanilla extract
  • 1/4 teaspoon almond extract

Vanilla Frosting

  • 1/2 cup unsalted butter, softened
  • 2 cups powdered sugar, sifted
  • 2-3 tablespoons milk
  • 1 1/2 teaspoons pure vanilla extract
  • Pinch of salt
  • Red, white, and blue sprinkles for decoration

Instructions

1
Prepare Oven and Pan: Preheat oven to 350°F. Line a 9×13-inch baking pan with parchment paper, leaving overhang for easy removal.
2
Mix Dry Ingredients: In a medium bowl, whisk together flour, baking powder, and salt. Set aside.
3
Cream Butter and Sugar: In a large bowl, beat softened butter and sugar together until light and fluffy, about 2-3 minutes.
4
Add Wet Ingredients: Beat in egg, egg yolk, vanilla, and almond extract until fully combined.
5
Combine Dough: Gradually add flour mixture to wet ingredients, mixing until just combined.
6
Spread Dough in Pan: Evenly spread dough in prepared baking pan using a spatula or your fingers.
7
Bake Cookie Bars: Bake for 18-20 minutes until edges are lightly golden but center remains soft.
8
Cool Completely: Let bars cool completely in the pan on a wire rack.
9
Prepare Frosting: Beat butter until creamy. Gradually add powdered sugar, milk, vanilla, and salt, beating until fluffy and spreadable.
10
Frost and Decorate: Spread frosting evenly over cooled bars. Decorate with red, white, and blue sprinkles.
11
Cut and Serve: Use parchment overhang to lift bars from pan. Cut into 16 squares and serve.
Additional Information

Equipment Needed

  • 9×13-inch baking pan
  • Parchment paper
  • Mixing bowls
  • Electric mixer
  • Spatula
  • Measuring cups and spoons
  • Wire rack

Nutrition (Per Serving)

Calories 270
Protein 2g
Carbs 38g
Fat 12g

Allergy Information

  • Contains wheat, gluten, dairy, and eggs. Sprinkles may contain soy or traces of nuts.
Ivy Rosen

Passionate home cook sharing weeknight meals, kitchen hacks, and everyday cooking joy.