Set half of the potatoes aside for later. Peel and cut remaining potatoes into large chunks; place in a saucepan. Cover with cold water and bring to a boil over high heat. Reduce heat to low and cook 15-20 minutes, or untill tender. Drain and place in a large bowl. Mash potatoes and set bowl aside.
Now peel and grate reserved potatoes and stir them into the mashed potatoes. Add onion, flour, salt and pepper; mix well. Stir in milk and egg to form a batter.
In a large skillet, heat oil over medium heat. Drop batter from a tablespoon into the hot oil, and cook 3-4 minutes on each side; drain on a paper towel. Transfer to your serving dish and serve with applesauce and sour cream. Bet you can't eat just one!