"These cookie bars take everything you love about snickerdoodle cookies and make it better. A soft, thick, chewy cookie covered with a slightly crunchy cinnamon sugar topping? Sign me up...."
INGREDIENTS
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1 cup unsalted butter (softened to room temperature)
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1 cup granulated sugar
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1/3 cup brown sugar (packed (light or dark brown sugar is fine))
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1 large egg
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1 large egg yolk
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2 teaspoons vanilla extract
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2 1/4 cups all-purpose flour
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1 teaspoon cornstarch
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1 teaspoon cream of tartar
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1 teaspoon baking powder
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1/2 teaspoon salt
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1/4 teaspoon baking soda
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1/4 cup granulated sugar
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2 teaspoons ground cinnamon