INGREDIENTS
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Vegetable or canola oil, for frying
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1 cup leftover mashed potatoes (see Cook's Note)
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1/4 cup whole milk
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1/4 cup water
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3 tablespoons unsalted butter
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Salt and pepper
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1/4 teaspoon cayenne pepper
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1/2 cup all-purpose flour
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2 eggs
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1/4 cup grated Parmesan