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Classic Flag Cake Recipe Easy Homemade Cream Cheese Frosting with Fresh Berries

classic flag cake recipe - featured image

A moist vanilla sheet cake topped with silky cream cheese frosting and fresh berries arranged in a festive flag pattern. Perfect for patriotic celebrations and casual summer gatherings.

Ingredients

Scale
  • 2 ½ cups all-purpose flour (310 g)
  • 2 ½ teaspoons baking powder
  • ½ teaspoon salt
  • 1 cup (2 sticks) unsalted butter, softened (226 g)
  • 1 ¾ cups granulated sugar (350 g)
  • 4 large eggs, room temperature
  • 1 cup whole milk, room temperature (240 ml)
  • 2 teaspoons pure vanilla extract
  • 8 oz cream cheese, softened (225 g)
  • ½ cup (1 stick) unsalted butter, softened (113 g)
  • 4 cups powdered sugar, sifted (480 g)
  • 1 teaspoon pure vanilla extract
  • Pinch of salt
  • 1 ½ cups strawberries, hulled and sliced (about 225 g)
  • 1 cup blueberries, rinsed and dried (150 g)
  • ½ cup raspberries or blackberries (optional, 75 g)

Instructions

  1. Preheat the oven to 350°F (175°C). Grease a 9×13 inch baking pan with butter or non-stick spray and lightly dust with flour.
  2. In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.
  3. In a large mixing bowl, beat the softened butter and granulated sugar with an electric mixer on medium speed for 3-4 minutes until light and fluffy.
  4. Add eggs one at a time, beating well after each addition.
  5. Stir in the vanilla extract.
  6. Reduce mixer speed to low. Add the flour mixture in three parts, alternating with the milk, starting and ending with flour. Mix gently until just combined.
  7. Pour batter into the prepared pan and spread evenly.
  8. Bake for 35-40 minutes, or until a toothpick inserted in the center comes out clean or with few moist crumbs.
  9. Cool the cake completely on a wire rack for at least 30 minutes before frosting.
  10. To make the frosting, beat the softened cream cheese and butter until smooth and creamy.
  11. Gradually add powdered sugar, 1 cup at a time, beating well after each addition.
  12. Stir in vanilla extract and a pinch of salt. Beat on high speed for 2-3 minutes until fluffy and spreadable.
  13. Frost the cooled cake evenly with the cream cheese frosting.
  14. Arrange the fresh berries on top in rows or clusters to create a classic flag pattern, pressing gently into the frosting.
  15. Refrigerate the cake for about 30 minutes to set the frosting before slicing and serving.

Notes

Use room temperature ingredients for best mixing results. Do not overmix the batter to avoid a dense cake. Frost only when the cake is completely cool to prevent melting. If frosting is too soft, chill briefly and whip again before spreading. Fresh berries should be dry to avoid sogginess. Frozen berries can be used if thawed and patted dry.

Nutrition

Keywords: flag cake, cream cheese frosting, fresh berries, vanilla cake, patriotic dessert, easy cake recipe, summer dessert