Add banana cake mix to a bowl fitted with a better, add water and vegetable oil and mix for 1 minute on slow speed. Mash the bananas and blend into the mixture. Scrape down and mix for a further 3 minuets on medium speed. Add walnuts (optional) and mix for a further minute. Pour the mixture into a loaf tin and bake at 180ºC, 360ºF, Gas 4, for approximately 40 - 50 Minutes.
Banana Cake Mix
Sugar; WHEAT FLOUR (WHEAT FLOUR; Calcium carbonate; Iron; Niacin; Thiamine); WHOLE EGG POWDER; Palm oil; Rapeseed oil; Raising agent: Diphosphates, Sodium carbonates; Salt; Emulsifier: Mono- and diglycerides of fatty acids; Flavouring.