1. Preheat the oven to 170C.
2. Beat the bananas, oil and butter together in a large bowl using a wooden spoon.
3. Once these ingredients have been combined, add the sugar and eggs then mix until smooth.
4. Add all the dry ingredients and mix well – make sure there are no lumps! - then place the mixture into a large loaf tin or into a muffin/fairy cake tin and bake for 35minutes
5. Once baked turn the loaf/cakes out onto a cooling wire and once cool dust the loaf with icing sugar using a sieve.