Sambar vada is a popular South Indian snack that combines crispy vadas (deep-fried lentil fritters) with tangy and flavorful sambar (lentil and vegetable stew). The vadas are made with a mixture of urad dal and spices, while the sambar is made with toor dal, tamarind, and a blend of spices. This delicious combination is perfect for breakfast or as a tea-time snack.