In a bowl combine flour,baking powder,soda,salt and sugar.In another bowl combine egg,milkand oil.Add egg mixture to flour mixture.Blend in bananas.Grease 2 muffin tins liberally.Pour in batter to fill two third of each cup.Bake at 375 c for 35 minutes.Use a toothpick to test for doneness.Remove tins to rack.Let stand for 5 min.With a greased knife cut around each cup.Invert tap to remove muffins. Serve immediatly with softened butter. ****Serves 6 *****