"Watch everyone's eyes open wide when you serve this big four-layer cake. Active time: 1 hr Start to finish: 3 hr..."
INGREDIENTS
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3 1/2 cups cake flour (not self-rising)
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1 tablespoon baking powder
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3/4 teaspoon baking soda
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1 teaspoon salt
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2 sticks (1 cup) unsalted butter, softened
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2 cups sugar
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4 large eggs at room temperature
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2 teaspoons vanilla
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2 cups sour cream
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Chocolate sour cream frosting
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Garnish: brown sugar buttercream