Using a box grater or food processor, grate the potatoes.

Place the grated potatoes in a clean kitchen towel and squeeze out as much liquid as possible.

In a mixing bowl, combine the grated potatoes, onion, egg, flour, salt, and pepper.

In a skillet, heat about 1/4 inch of vegetable oil over medium heat.

Form small patties from the mixture, about 3 inches wide.

Carefully place the patties in the hot oil and fry for about 3-4 minutes per side, until golden brown.

Once cooked, transfer the patties to paper towels to absorb excess oil.

Enjoy your Kartoffelpuffer while hot, topped with applesauce or sour cream if desired.