INGREDIENTS
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Cake:3 sticks (1 1/2 cups) unsalted butter, softened, plus more for greasing
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3 1/2 cups all-purpose flour, plus more for dusting
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2 1/4 cups granulated sugar
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5 large eggs
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1 teaspoon vanilla extract
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1 tablespoon baking powder
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1/2 teaspoon baking soda
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1/4 teaspoon salt
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1 1/4 cups buttermilk
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1 cup sour cream
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Butter Filling, for assembling, recipe followsFrosting:One 8-ounce package cream cheese, softened
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1 stick (1/2 cup) unsalted butter, softened
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1 tablespoon vanilla extract
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6 cups confectioners’ sugarButter Filling:1 stick (1/2 cup) unsalted butter
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3/4 cup granulated sugar
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1/3 cup orange juice
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3 large eggs
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One 8-ounce package cream cheese, softened and cubed
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