Upside down Idlies

For preparing the Idli batter, wash the rice and dal thoroughly and soak for at least six hours. Grind and mix well. Cover and leave in warm place for six to eight hours. For the potato layer, heat oil, add mustard seeds, curry and coriander leaves and fry for a few seconds. Add the onion, turmeric powder and cook for a few minutes. Add the boiled potato and salt (permitted amount), cool the mixture. For fi nal preparation, grease the banana leaves and place in an Idli stand. Put one teaspoon of potato stuffi ng and one tablespoon of batter on each circle of banana leaf. Steam for 10-12 minutes. Wait for one minute and take out the Idli. Serve hot by turning down vegetable side up.