Any non-coated tin can will do*, just make sure it's clean and free of sharp edges. You can use any cake recipe you'd like, but I found a great one that is actually for 2 cupcakes. Instead of using muffin tins , I just poured all the batter into the can and it was just the right size.
May coffee cans be used for baking? Answer: We checked with the Canned Food Information Council and they assured us that it is safe to bake in coffee cans.