I baked a wholemeal sponge cake fashioned it into a potato shape then covered it in buttercream, adding more on top. I then rolled marzipan with the bottom side in cocoa. I then wrapped the potato in it's marzipan jacket and artfully drizzled/ spread it with melted dark chocolate and put it in the fridge. I then slit and pushed it as you would a normal jacket.
I charmed the man in the kebab shop and he gave me a takeaway carton. You can see the scale of the potato because it's busting out of the tray. I grated marzipan to make the cheese and I had made marzipan beans the night before so that they hardened. I then heated up some jam and mixed the 'beans' in. Jacket po-cake-o with cheese and beans was born!
I finished it off with a plastic fork and took it to the pub for Jane to eat!