Classic Flag Cake is a festive 4th of July dessert made with fluffy vanilla cake, whipped cream frosting, and fresh berries arranged as the American flag. It’s simple, patriotic, and perfect for summer celebrations.
1box white or vanilla cake mixplus ingredients listed on the box
or
2½cupsall-purpose flour
2½teaspoonsbaking powder
½teaspoonsalt
¾cupunsalted buttersoftened
1¾cupsgranulated sugar
4large eggs
1cupmilk
2teaspoonsvanilla extract
For the Frosting:
2cupsheavy whipping cream
½cuppowdered sugar
1teaspoonvanilla extract
For Decorating:
1cupfresh blueberries
1½cupssliced strawberries
Optional: additional raspberries for extra red color
Instructions
Bake the Cake:
Preheat oven to 350°F (175°C). Prepare a 9x13-inch pan. Make and bake the cake according to box directions or homemade version. Cool completely.
Make Whipped Frosting:
In a large bowl, beat whipping cream, powdered sugar, and vanilla until stiff peaks form.
Frost & Decorate:
Spread whipped cream over cooled cake. Arrange blueberries in the top-left corner as the “stars,” and alternate strawberry slices in rows to form red “stripes.”
Chill & Serve:
Chill for 30 minutes before slicing for best results. Serve cold.
Notes
Shortcut: Use store-bought cake and frosting for a quicker version.
Make Ahead: Cake and whipped topping can be made a day ahead; decorate just before serving.
Fruit Swap: Use raspberries instead of strawberries or combine both for extra colour.
Stabilised Cream: Add 1 tablespoon instant pudding mix for a more stable whipped topping.
Serving Tip: Perfect centerpiece dessert for July 4th, Memorial Day, or Veterans Day.
Keyword 4th of July cake, American flag cake, berry sheet cake, patriotic dessert