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Easy Patriotic Sheet Cake Recipe with Berry Flag Topping for 4th of July

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A simple, moist, and tender sheet cake topped with a fresh berry flag design, perfect for 4th of July and summer celebrations. This easy recipe uses pantry staples and fresh or frozen berries for a festive, fuss-free dessert.

Ingredients

Scale
  • 2 ½ cups (315 g) all-purpose flour
  • 2 cups (400 g) granulated sugar
  • 2 ½ teaspoons baking powder
  • ½ teaspoon salt
  • ½ cup (113 g) unsalted butter, softened
  • 1 cup (240 ml) whole milk, room temperature
  • 3 large eggs, room temperature
  • 2 teaspoons vanilla extract
  • 8 oz (225 g) cream cheese, softened
  • ½ cup (113 g) unsalted butter, softened (for frosting)
  • 3 cups (360 g) powdered sugar, sifted
  • 1 teaspoon vanilla extract (for frosting)
  • 2 tablespoons heavy cream (optional, for frosting thinning)
  • 1 ½ cups fresh strawberries, hulled and sliced
  • 1 ½ cups fresh blueberries
  • 1 cup fresh raspberries (optional)
  • Powdered sugar (optional for dusting berries)

Instructions

  1. Preheat your oven to 350°F (175°C). Grease a 9×13-inch sheet pan or line it with parchment paper.
  2. In a large bowl, whisk together flour, sugar, baking powder, and salt until well combined.
  3. Using a mixer, beat softened butter until fluffy. Add eggs one at a time, beating well after each addition.
  4. Mix in milk and vanilla extract until smooth.
  5. Gradually add the dry ingredients to the wet mixture, mixing on low speed just until combined. Avoid overmixing.
  6. Pour batter into the prepared pan and spread evenly to about 1 inch thick.
  7. Bake for 35-40 minutes, or until a toothpick inserted in the center comes out clean or with a few crumbs.
  8. Cool the cake completely in the pan on a wire rack for at least 30 minutes.
  9. Prepare the frosting by beating cream cheese and butter until creamy. Gradually add powdered sugar and vanilla extract. Add heavy cream if frosting is too thick.
  10. Spread the frosting evenly over the cooled cake using an offset spatula.
  11. Arrange sliced strawberries in horizontal stripes on one half of the cake. Place a cluster of blueberries in the top left corner. Fill the remaining half with rows of blueberries and raspberries to complete the flag pattern.
  12. Optionally, lightly dust powdered sugar over the berries.
  13. Refrigerate the cake for 30 minutes to set the frosting and meld flavors. Bring to room temperature before slicing.

Notes

Use room temperature ingredients for best results. Avoid overmixing the batter to keep the cake tender. Pat berries dry if too wet to prevent soggy topping. Frost only when cake is completely cool to prevent melting. Frozen berries can be used if thawed and drained well. Variations include gluten-free and vegan substitutions.

Nutrition

Keywords: patriotic cake, 4th of July dessert, sheet cake, berry flag topping, easy summer cake, berry cake, cream cheese frosting