INGREDIENTS
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4½ Cups all-purpose flour
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4½ Teaspoons baking powder
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¾ teaspoon table salt
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1½ Cups butter, at room temperature
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1½ Cups granulated sugar
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3 large eggs, at room temperature
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5 Teaspoons vanilla extract
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5 Cups powdered sugar, sifted
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⅓ cup butter, melted
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1 tablespoon vanilla extract
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7-8 Tablespoons milk, plus more as needed
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food coloring
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sprinkles