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Perfect Red White and Blue Flag Sheet Cake Easy Recipe for a Crowd

red white and blue flag sheet cake - featured image

A festive, easy-to-make sheet cake featuring a moist vanilla base topped with light whipped cream frosting and fresh strawberries and blueberries arranged like the American flag. Perfect for large gatherings and patriotic celebrations.

Ingredients

Scale
  • 2 ½ cups all-purpose flour (310g)
  • 2 cups granulated sugar (400g)
  • 2 ½ teaspoons baking powder
  • ½ teaspoon salt
  • ¾ cup unsalted butter (170g), melted and slightly cooled
  • 1 cup whole milk (240ml), room temperature (can substitute almond milk)
  • 4 large eggs, room temperature
  • 2 teaspoons pure vanilla extract
  • 2 cups heavy whipping cream (480ml), chilled
  • ½ cup powdered sugar (60g), sifted
  • 1 teaspoon vanilla extract
  • 2 cups fresh strawberries, hulled and sliced
  • 1 ½ cups fresh blueberries
  • Whipped cream (from frosting) for white stripes

Instructions

  1. Preheat your oven to 350°F (175°C). Grease your half-sheet pan generously with butter or non-stick spray, then lightly flour it.
  2. In a large bowl, whisk together flour, sugar, baking powder, and salt until well combined.
  3. In another bowl, whisk eggs, melted butter, milk, and vanilla extract until combined.
  4. Slowly add the wet mixture to the dry ingredients, stirring gently with a spatula until just combined. Do not overmix.
  5. Pour batter into the prepared pan and spread evenly. Tap the pan gently on the counter to release air bubbles.
  6. Bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean or with a few moist crumbs.
  7. Cool the cake completely on a wire rack before frosting.
  8. In a chilled bowl with a whisk attachment, beat heavy cream, powdered sugar, and vanilla extract on medium-high until soft peaks form.
  9. Spread the whipped cream frosting evenly over the cooled cake.
  10. Arrange fresh blueberries in the top left corner for the blue field of the flag.
  11. Create alternating horizontal stripes of sliced strawberries and whipped cream across the rest of the cake to mimic the flag design.
  12. Refrigerate the cake for at least 30 minutes to set the frosting and meld flavors before serving.

Notes

Use coconut cream whipped with powdered sugar for a dairy-free frosting. Frozen berries can be used if thawed and drained well. For gluten-free, use a 1:1 gluten-free flour blend but expect a denser cake. Chill bowl and beaters before whipping cream to prevent runniness. Let cake cool completely before frosting to avoid melting.

Nutrition

Keywords: red white and blue cake, patriotic dessert, sheet cake, vanilla cake, whipped cream frosting, fresh berries, July 4th dessert, easy crowd cake