Perfect fresh with icing or toasted without.
Preheat oven to 180 C.
Prepare loaf tin (25 x 10 x 11cm).
Beat butter, sugar and vanilla until light and fluffy with an electric mixer.
Add the eggs one at a time and combine each well.
Add in sifted flour bicarbonate soda, yoghurt and banana until well combined.
Pour into prepared tin and bake in the oven for 1 hour.
Wait until cool before removing from tin.