In a blender or food processor, place 1/2 cup potatoes, onion, eggs, flour, parsley, baking powder, salt, pepper, Worcestershire sauce and nutmeg. Process until smooth. Add remaining potatoes and pulse until chopped (two to three times). Pour by 1/4 cupfuls onto a hot well-oiled skillet or griddle. Fry over medium heat until golden on both sides.