INGREDIENTS
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2 1/2 cups sifted cake flour
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1 teaspoon salt
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2 tablespoons Dutch-processed cocoa powder
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1/2 cup unsalted butter at room temperature, plus more for
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buttering the pans
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1 1/2 cup granulated white sugar
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2 large eggs
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2 teaspoons vanilla extract
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1 cup buttermilk
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1 teaspoon white distilled vinegar
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1 teaspoon baking soda
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Icing
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3/4 cups heavy cream
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8 ounces semisweet chocolate
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1 dash salt