"For variations on this cake, see our chocolate and lemon cake recipes...."
INGREDIENTS
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1 cup (2 sticks) unsalted butter, room temperature, plus more for pans
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2 1/2 cups all-purpose flour (spooned and leveled), plus more for pans
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1/2 teaspoon baking powder
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1/2 teaspoon baking soda
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1 teaspoon salt
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1 1/2 cups sugar
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2 large eggs
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3 large egg yolks
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2 teaspoons pure vanilla extract
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1 cup low-fat buttermilk
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Whipped Frosting