White lentils - urad dal
White lentils are actually black, only after removing the black skin it becomes white. It belongs to mung beans family and originally comes from India, where it is one of the essentials in dosa or idly batter.
It is used in batter for a famous snack called vada, in dhals or in some South Indian specials, like thoran for the crunchiness.
Other recipes with urad dal.