Mary Berry’s banana loaf

100g soft butter
175g caster sugar 
2 Large eggs
200g Self raising flour 
1 tsp baking powder 
2 over ripe bananas, mashed

How to make it

Preheat the oven to 180C. Butter and line a 2lb loaf tin.

Beat all of the ingredients together for two minutes until the batter is smooth and everything is well incorporated.  Pour into the tin and bake for one hour, or until well risen and a skewer inserted in the middle comes out clean.  Leave to cool on a wire rack.