Medu vada or minapa gaarelu, as they are known in Telugu, is ground urad dal batter shaped like a donut and deep fried in oil. Well it is not a donut, as it is a savory item. I think it is the fluffiest, filling, savory donut when made properly. It is served as a snack, breakfast item served with chutney and sambar or eaten with sambar as part of a meal too (at least we do that in our family).