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Perfect Flag Sheet Cake Recipe for Easy Patriotic Celebrations

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A quick and easy patriotic flag sheet cake with vibrant red, white, and blue frosting, perfect for Fourth of July and other celebrations. Moist, delicious, and decorated with fresh blueberries for a festive touch.

Ingredients

Scale
  • 2 ½ cups all-purpose flour
  • 2 ½ teaspoons baking powder
  • ½ teaspoon salt
  • 1 cup unsalted butter, softened
  • 1 ¾ cups granulated sugar
  • 4 large eggs, room temperature
  • 1 tablespoon pure vanilla extract or vanilla bean paste
  • 1 cup whole milk, room temperature
  • 1 cup unsalted butter, softened (for frosting)
  • 4 cups powdered sugar
  • 2–3 tablespoons heavy cream or coconut cream
  • 1 teaspoon vanilla extract
  • Red gel food coloring
  • Blue gel food coloring
  • Fresh blueberries

Instructions

  1. Preheat the oven to 350°F (175°C). Grease a 9×13-inch sheet pan with butter and lightly dust with flour or use parchment paper.
  2. In a medium bowl, sift together flour, baking powder, and salt. Set aside.
  3. In a large bowl, beat softened butter and sugar on medium speed until light and fluffy, about 3-4 minutes.
  4. Beat in eggs one at a time, fully incorporating each before adding the next. Mix in vanilla extract or bean paste.
  5. Add the flour mixture in three parts, alternating with milk, starting and ending with flour. Mix gently after each addition without overmixing.
  6. Pour batter into the prepared pan, spread evenly, and smooth the top. Tap the pan gently to release air bubbles.
  7. Bake for 35-40 minutes, or until a toothpick inserted in the center comes out clean or with a few moist crumbs.
  8. Cool the cake completely on a wire rack before frosting.
  9. For frosting, beat softened butter until creamy. Gradually add powdered sugar, heavy cream, and vanilla extract until fluffy.
  10. Divide frosting into three bowls. Leave one white, color one red, and one blue using gel food coloring.
  11. Spread white frosting over the entire cake as a base.
  12. Pipe blue frosting in a rectangle in the top left corner to mimic the flag’s stars field.
  13. Pipe red stripes alternating with white space over the rest of the cake.
  14. Place fresh blueberries evenly in the blue section to represent stars.
  15. Chill the cake for 30 minutes to set the frosting before slicing.

Notes

Use gel food coloring for vibrant colors without thinning frosting. Chill cake between piping colors for clean edges. Pat blueberries dry before placing to prevent color bleed. Room temperature ingredients ensure smooth batter and frosting. Avoid overmixing batter to keep cake tender. Can substitute gluten-free flour and dairy-free ingredients as noted.

Nutrition

Keywords: flag sheet cake, patriotic cake, Fourth of July dessert, easy cake recipe, red white and blue cake, blueberry cake, festive cake

Find it online: https://novanosh.com/perfect-flag-sheet-cake-recipe-for-easy-patriotic-celebrations/