Elai vadam, also known as thallu vadam, is a traditional South Indian dish made from rice flour and spices. It is a crispy and delicious papad that is typically served as an accompaniment to meals. The vadam is made by spreading a thin layer of rice flour batter on banana leaves and drying them under the sun. Once dried, they are deep-fried until golden and crispy. Elai vadam is a popular snack during festivals and can be stored in an airtight container for several weeks.