Sweet, gooey, caramelized banana is just a campfire away. This recipe for bananas Foster requires nothing but a banana, some cinnamon sugar, and tinfoil; heat up and serve hot. If you want to make this at home, just assemble and put it in the oven at 425°F for 5 to 10 minutes. Or cook it on the grill after dinner is done. Either way, it’s best served with a splash of rum.