Peel yam and cut it round. in a pot add yam and pinch of salt boiled it till soft, drain it and leave it to cold use hand to smashed it,grate pepper,onion and keep it aside. In a bowl put all the ingredients together and turn it thoroughly make sure it join itself.using hand to mould it to make a ball. Break egg in a small bowl add pinch of seasoning and beat it.Add oil in a frying pan and put the ball in the egg and put it in the oil to fry till it turns golden brown.serve chilled