INGREDIENTS
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pcake2/3 cup sour cream
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2 teaspoon baking soda
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1/2 teaspoon salt
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2 eggs
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1 whole vanilla bean, split
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2 cups granulated sugar
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1 cup (8 ounces) salted butter, melted
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2 cups all-purpose flour
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Caramel Buttercream Frosting, recipe follows
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1 1/2 cups (12 ounces) unsalted butter, cubed and chilled
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4 ounces cream cheese, cubed and chilled
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3 cups powdered sugar
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1 cup caramel sauce