Relish of Pickled Eggplant/Aubergine

‘Anba/‘amba is a popular condiment in Iraq (for more on its uses and popularity). It is usually made from pickled green mangos, kept in wide-mouthed bottles and imported exclusively from India. In recent years, however, and during the imposed economic embargo, people were forced to make do with many substitutes. Here is one of them. Eggplant is used instead of green mangos to make this delicious and appetizing relish. An inventive friend of mine, N