Ever get a midnight hankering for onion fritters, or for a plate of lamb stewed in coconut milk? The recipes for these Indian delicacies are widely considered to be on the forbidding side. Yet Madhur Jaffrey, an international authority on Indian food and the host of several tandoori-driven TV shows, makes it all seem relatively easy. The kicker: more than 70 of the dishes can be prepared in a half-hour or less.