Aval vadai is a popular South Indian snack made with flattened rice (aval) and lentils. It is similar to a traditional vadai, but with the addition of aval, giving it a unique flavor and texture. The flattened rice is soaked and mixed with a batter made from lentils, onions, green chilies, and spices. The mixture is then shaped into small patties and deep-fried until crispy and golden brown. Aval vadai is typically served hot with coconut chutney or sambar. It is a delicious and crunchy snack that is enjoyed by people of all ages.