Classic Idli is a popular South Indian breakfast dish made from fermented rice and lentil batter. It is a steamed cake that is soft, fluffy, and light. To make Classic Idli, soak rice and urad dal separately for a few hours. Grind them into a smooth batter and let it ferment overnight. The next morning, pour the batter into idli molds and steam them for about 10-12 minutes. Serve hot with coconut chutney and sambar.