INGREDIENTS
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1/2 cup butter
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1/2 cup shortening
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1/2 cup granulated sugar
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1/2 cup sifted powdered sugar
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1/2 teaspoon baking soda
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1/2 teaspoon cream of tartar
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1/8 teaspoon salt
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1 egg
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1/2 teaspoon vanilla
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2 cups all-purpose flour
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Granulated sugar