INGREDIENTS
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•2 1⁄2 cups all-purpose flour
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•1⁄4 teaspoon salt
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•1 teaspoon baking powder
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•1⁄8 teaspoon cinnamon
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•3⁄4 cup (1 1⁄2 sticks) unsalted butter, softened to cool room temperature
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•1 cup sugar
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•1 egg
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•1 1⁄2 teaspoons vanilla extract