INGREDIENTS
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For the Cake
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4 lemons
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3 cups cake flour
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1/2 teaspoon baking soda
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1/2 teaspoon salt
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1 cup (2 sticks) unsalted butter
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3 cups superfine sugar
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6 eggs
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1 cup full-fat sour cream
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For the Glaze
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2 lemons
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2 cups powdered sugar