1. In a 3 separate piece of foil paper spread little and sprinkle demerara sugar and place the slit bananas in it.
2. Sprinkle some raisins on each of the bananas and 1 tablespoon of rum and also dash of lemon juice on all the 3 banana.
3. Now fold the foil neatly and bake it in the oven for 15 minute at 180 degree C.
4. You can serve it with a nice scoop of your favorite ice-cream.