INGREDIENTS
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1 3/4 cup all-purpose flour
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1/2 teaspoon cream of tartar
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1/2 teaspoon baking soda
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1/8 teaspoon salt
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1/2 cup (1 stick) unsalted butter, room temperature
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3/4 cup granulated sugar
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1/4 cup light molasses
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1 large egg
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1 teaspoon vanilla extract
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3 tablespoons granulated or turbinado sugar
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1 teaspoon ground cinnamon