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Perfect Flag Sheet Cake Recipe with Fresh Berries and Cream

perfect flag sheet cake - featured image

A moist and fluffy vanilla sheet cake topped with whipped cream and fresh strawberries and blueberries arranged to resemble a flag. Perfect for summer parties and celebrations.

Ingredients

Scale
  • 2 ½ cups all-purpose flour (320 g)
  • 2 cups granulated sugar (400 g)
  • 2 ½ teaspoons baking powder
  • ½ teaspoon salt
  • ¾ cup unsalted butter (170 g), softened
  • 4 large eggs, room temperature
  • 1 cup whole milk (240 ml), room temperature
  • 2 teaspoons pure vanilla extract
  • 2 cups heavy whipping cream (480 ml), cold
  • ¼ cup powdered sugar (30 g)
  • 1 teaspoon vanilla extract
  • 2 cups fresh strawberries, hulled and sliced
  • 1 ½ cups fresh blueberries

Instructions

  1. Preheat oven to 350°F (175°C). Grease a 9×13 inch baking pan lightly with butter or non-stick spray, then dust with flour.
  2. In a large bowl, beat ¾ cup softened unsalted butter with 2 cups granulated sugar until light and fluffy, about 3-4 minutes.
  3. Add 4 large eggs one at a time, mixing well after each addition. Stir in 2 teaspoons vanilla extract.
  4. In a separate bowl, whisk together 2 ½ cups all-purpose flour, 2 ½ teaspoons baking powder, and ½ teaspoon salt.
  5. Gradually add the dry ingredients to the butter mixture in three parts, alternating with 1 cup whole milk, starting and ending with the flour. Mix gently until just combined.
  6. Spread the batter evenly in the prepared pan. Bake for 35-40 minutes or until a toothpick inserted in the center comes out clean.
  7. Cool the cake completely in the pan on a wire rack for at least 30 minutes.
  8. In a chilled bowl, beat 2 cups cold heavy cream with ¼ cup powdered sugar and 1 teaspoon vanilla extract until soft peaks form.
  9. Spread the whipped cream evenly over the cooled cake.
  10. Arrange sliced strawberries in stripes and blueberries in a rectangle on one corner to mimic the flag’s stars section.
  11. Refrigerate the cake for at least 1 hour to let the cream set and flavors meld before slicing and serving.

Notes

Bring eggs and milk to room temperature before mixing for smooth batter. Chill bowl and beaters before whipping cream. Do not overwhip cream to avoid turning it into butter. Arrange berries carefully for a neat flag design. Chill cake for at least 1 hour before serving to set cream. Pat berries dry if very juicy to avoid soggy cake. Can substitute gluten-free flour or dairy-free ingredients for dietary needs.

Nutrition

Keywords: flag sheet cake, fresh berries, whipped cream, summer dessert, Fourth of July cake, easy sheet cake, patriotic dessert