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Perfect Flag Sheet Cake

perfect flag sheet cake - featured image

A simple, festive vanilla sheet cake decorated with whipped cream and fresh berries arranged as the American flag, perfect for patriotic celebrations.

Ingredients

Scale
  • 2 ½ cups all-purpose flour (spooned and leveled)
  • 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
  • 1 cup whole milk, room temperature
  • 2 cups heavy cream, cold
  • ¼ cup powdered sugar
  • 1 teaspoon vanilla extract
  • 1 ½ cups fresh strawberries, sliced
  • 1 cup fresh blueberries

Instructions

  1. Preheat oven to 350°F (175°C). Grease a 9×13 inch baking pan with butter or non-stick spray and lightly flour it.
  2. In a medium bowl, whisk together flour, baking powder, and salt.
  3. In a large bowl, beat softened butter and granulated sugar until light and fluffy, about 3-4 minutes.
  4. Beat in eggs one at a time, mixing well after each addition. Stir in vanilla extract.
  5. With mixer on low, add dry ingredients in three parts alternating with milk, beginning and ending with dry ingredients. Mix just until combined.
  6. Pour batter into prepared pan and smooth the top. Bake for 35-40 minutes or until a toothpick inserted in the center comes out clean.
  7. Cool cake in pan on wire rack for 20 minutes, then invert onto rack and remove parchment. Cool completely before frosting.
  8. Chill mixing bowl and beaters for 10 minutes. Beat heavy cream, powdered sugar, and vanilla extract on medium-high speed until stiff peaks form.
  9. Spread whipped cream evenly over cooled cake.
  10. Arrange blueberries in the top left corner to form the blue field of the flag. Make 7 alternating stripes of sliced strawberries and whipped cream across the remaining surface.

Notes

Use room temperature ingredients for best mixing. Chill bowl and beaters before whipping cream to achieve stiff peaks. Frost only when cake is completely cool to prevent melting. Fresh berries provide best flavor and appearance; thaw and drain frozen berries if used. Store cake refrigerated and consume within 2-3 days for best freshness.

Nutrition

Keywords: flag cake, patriotic dessert, Fourth of July cake, sheet cake, vanilla cake, whipped cream frosting, berry cake