Tirunelveli Halwa is a popular South Indian sweet dish that originated in Tirunelveli, a city in Tamil Nadu. It is made from wheat, ghee, sugar, and flavored with cardamom and saffron. The halwa has a rich, gooey texture and a unique taste that is both sweet and slightly tangy. It is often garnished with cashews and served as a dessert or a special treat during festivals and celebrations.