INGREDIENTS
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2 1/4 cups cake flour
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1 tablespoon baking powder
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1/2 teaspoon salt
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1 1/4 cups buttermilk
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4 large egg whites
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1 1/2 cups sugar
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2 teaspoons grated lemon zest
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1 stick (8 tablespoons) unsalted butter, softened
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White frosting (store bought or homemade)
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Red and pink paste/gel food coloring
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Sprinkles, non-pareils, colored sugar, etc