"Yield: 1 (10-inch) cake..."
INGREDIENTS
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3⁄4 cup natural unsweetened cocoa powder
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3 (1-ounce) squares German’s sweet chocolate, chopped
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3⁄4 cup hot coffee
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1⁄2 cup unsalted butter, softened
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2 cups sugar
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1 tablespoon vanilla extract
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3 large egg whites, at room temperature
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3 cups all-purpose flour
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1 tablespoon baking powder
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3⁄4 teaspoon baking soda
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1 1⁄2 teaspoons salt
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1 1⁄2 cups whole buttermilk
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Butterscotch Glaze (recipe follows)