Rava Idli is a variation of the traditional South Indian dish, idli, which is a savory steamed cake made from fermented rice and lentil batter. In Rava Idli, semolina (rava or sooji) is used instead of rice, which makes the preparation quicker as it doesn't require fermentation. The batter is typically made by mixing semolina with yogurt and seasoned with ingredients like mustard seeds, curry leaves.