"These snickerdoodle cookies are so thick and soft, and they're loaded with cinnamon and sugar...."
INGREDIENTS
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½ cup butter (room temperature)
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¾ cup granulated sugar
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1 large egg
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2 teaspoons vanilla
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1 1/2 cups flour
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2 tablespoons cornstarch
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1 teaspoon cream of tartar
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½ teaspoon baking soda
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¼ teaspoon salt
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¼ cup granulated sugar
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2 teaspoons cinnamon