Classic South Indian Rasam is a tangy and flavorful soup made with tamarind, tomatoes, and a blend of spices. It is a staple in South Indian households and is often served with rice or as a soup. The recipe involves cooking the tamarind pulp with tomatoes, spices like cumin, coriander, and black pepper, and finally tempering it with mustard seeds, curry leaves, and asafoetida. The result is a delicious and comforting rasam that is perfect for any meal.