INGREDIENTS
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2 cups all-purpose flour
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2 cups sugar
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3/4 cup unsweetened cocoa powder (not Dutch-process)
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2 teaspoons baking soda
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1 teaspoon baking powder
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1/2 teaspoon salt
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2 large eggs
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1 cup sour cream
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1 cup milk
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3/4 cup vegetable oil
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1 1/2 teaspoons vanilla extract
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1 tablespoon instant espresso powder
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4 large egg whites
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1 1/2 cups sugar
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1/4 teaspoon cream of tartar
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1/8 teaspoon salt
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1 teaspoon vanilla extract