This classic Uttapam recipe is a popular South Indian dish that is made with fermented rice and lentil batter. It is a thick pancake-like dish that is typically topped with a variety of vegetables like onions, tomatoes, and green chilies. The batter is made by soaking rice and lentils overnight, grinding them into a smooth paste, and then fermenting it for a few hours. The fermented batter is then spread on a hot griddle and cooked until golden brown. Serve this delicious Uttapam with coconut chutney or sambar for a complete meal.