Prep time: 15 minutes Cook time: 4-5 minutes Materials: 1 lb. Russet potatoes (grated) 1 large onion (finely diced) 2 eggs 1/4 cup sour cream 1/4 cup potato starch Salt and pepper to taste Vegetable oil For the mushroom sauce (optional): 1 large onion (finely chopped) 14 oz white mushrooms (cubed) 1 cup and 1/14…