INGREDIENTS
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2 1/2 cups cake flour
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2 tsp cornstarch
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1 1/2 tsp baking powder
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1/4 tsp salt
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1/2 cup salted butter, at room temperature
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1/4 cup all vegetable shortening (unflavored), at room temperature
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1 cup granulated sugar
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1 large egg
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1 large egg white
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2 tsp vanilla or almond extract
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Neon/electric food coloring (preferably gels)
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Nonpareil sprinkles