I do lots of baking but always make round ones (and the occasional banana cake in a square tin as that is what the recipe suggests) however it's DD1's 3rd birthday tomorrow and she has requested a Humpty Dumpty cake. I've got a chocolate egg to make the body and some yogurty covered bits to make a wall but I think to create this masterpiece I need a rectangular base rather than my usual 8" round tins. I'm going to look out my rectangular tins but what sort of cake mixture would I need for a shallow rectangular tin?
Would a basic 6oz flour, 6oz marg, 6oz sugar 3 egg combo work ?