Banana Walnut Bread

(This is from the ABC of Banana Cookery, which I think came free from Waitrose)

Ingredients

3 oz. butter
6 oz. caster sugar
2 eggs (obviously free-range, organic!)
10 oz bananas
8 oz plain flour
3 level teaspoons baking powder
pinch of salt
2 oz walnuts (roughly chopped)

Cream butter until soft then work in the sugar. Add eggs one at a time and beat to a smooth mixture.
Mash bananas well, add to egg mixture and beat until blended.
Sieve together flour, salt, baking powder, stir one tablespoonful into nuts.
Add remaining flour to egg mixture, stir until mixed, then add nuts and stir again.
Turn mixture into a well-greased loaf tom and bake at approx. gas mark 4 (350 degrees) for about an hour.

(N.B, Check after about 40 minutes, as one hour may be too long for some ovens).