"Summary: Despite the name, a perfect American original – and delicious classic!..."
INGREDIENTS
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4 (1 oz.) squares German sweet chocolate
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1/2 cup water
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1 cup all-purpose flour
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1 cup cake flour
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1 cup all-purpose flour
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1/2 teaspoon table salt
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1 cup butter, room temperature
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2 cups sugar
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4 eggs, divided
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2 teaspoons vanilla extract
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1 cup buttermilk
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1/4 tsp cream of tartar