Grease a tin and set the oven at 180 degrees Celsius/356 Fahrenheit..
1. Cream butter and sugar together until pale in colour
2.add eggs one by one to prevent the mixture splitting
3. Add flour and baking powder and stir into the mixture
4.Mash the bananas with a fork and incorporate into the batter
5. Put the batter in the oven and bake for 30minutes, check the bread with a skewer and cool aside.