Ingredients
- 18 tablespoons (2 1/4 sticks) unsalted butter, room temperature, plus more for pan
- 3 cups all-purpose flour, plus more for pan
- 3 cups sugar
- 6 large eggs
- 1 1/4 cups sour cream
- 1 1/2 teaspoons pure vanilla extract
- 1 teaspoon finely grated lemon zest (1 lemon)
- 1/3 cup cornstarch
- 1 teaspoon table salt
- 1 teaspoon baking soda
- Cream Cheese Frosting for Flag Cake
- 1 half-pint blueberries
- 3 half-pints raspberries
Personal Notes
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