INGREDIENTS
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2 cups all-purpose flour, plus additional for dusting
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2 teaspoons baking powder
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1/2 teaspoon baking soda
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1/2 teaspoon salt
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5 tablespoons cold unsalted butter, thinly slice
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2/3 cup lowfat buttermilk, plus additional for brushing
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3 tablespoons nonfat plain Greek yogurt