1) Heat oven to 220 degrees C. Over a very low heat, melt the butter and marge in a pan. Mix in the sugar and honey.
2) Pour in the oats, stirring to coat it with the mixture, then mix in the banana mush.
3) Spread the mixture over a baking tray, using a knife to smooth it over.
4) Bake for 15-20 mins.
Leave them to cool slightly, then cut into slices. Restrain yourself to
let them cool completely before removing them from the tray!