Combine potatoes, onion, and flour in a food processor. Mix, blending into mush. Add salt and egg, and mix thoroughly.

Form into patties. Set aside.

Fill a medium frying pan with ½ inch of evoo, and heat on stove until a drop of water flicked into the pan sizzles. Arrange patties in pan and fry till golden brown. Use a spatula to remove from heat.

Sprinkle with truffle salt before serving. Serve with sharp cheddar cheese and salsa. 

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Source:

Amy Nemiccolo