"The perfect chocolate sheet cake, made in a 13" x 9" pan for optimal frosting to cake ratios!..."
INGREDIENTS
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1 cup butter
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1 cup water
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5 tablespoons cocoa powder
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2 cups flour
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2 cups granulated sugar
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1 teaspoon baking soda
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1/2 teaspoon salt
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2 eggs, beaten
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1 teaspoon vanilla extract
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1/2 cup buttermilk
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1/2 cup butter
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4 tablespoons cocoa powder
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5 tablespoons buttermilk
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1 lb (16 oz) powdered sugar
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1 teaspoon vanilla extract