What is something sweet I can make with milk, egg, sugar, flour & cocoa?

I have no butter or marg. I literally have the ingredients above plus baking powder, baking soda, oil, 2 banannas, vanilla essence and icing sugar. What can I make I am hungry and need something filling but sweet. I have no money until tomorrow morning so I need something now to fill the gap until then. My fridge defrosted and I lost all my food as it went off. I was able to scrape together enough change for milk! Arrr its been one of those weeks! So any yummy recipes I can make would be gratefully recieved.

Thanks