Prepare the Potatoes: Peel and grate the potatoes.

Place the grated potatoes in a clean kitchen towel or cheesecloth and squeeze out as much excess moisture as possible.

Make the Potato Mixture: In a large bowl, combine the grated potatoes, cornstarch, grated mozzarella cheese, and chopped parsley.

Season with salt and black pepper to taste.

Mix well until all ingredients are evenly combined.

Form the Patties: Take small portions of the potato mixture and shape them into patties.

Fry the Patties: Heat olive oil in a large skillet over medium heat.

Fry the patties for about 3-4 minutes on each side, or until they are golden brown and crispy.

Transfer the fried patties to a plate lined with paper towels to drain excess oil.

Make the Optional Sauce: In a small bowl, combine the sour cream, ketchup, soy sauce, Worcestershire sauce, paprika, and mayonnaise.

Mix well until smooth.

Serve: Serve the potato patties warm with the optional sauce on the side for dipping.