INGREDIENTS
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2 Tablespoons vegetable oil 1/4 cup buttermilk 2 large eggs 2 1/2 cups leftover mashed potatoes 3 Tablespoons chopped scallions 1 cup shredded cheddar cheese 1/2 cup all-purpose flour 1/2 teaspoon baking powder 1/4 teaspoon baking soda Sour cream, fo