The kalonji, or Nigella seeds, is an interesting spice ƒ?? when used for tempering, it adds a beautiful aroma to the dishes, and a hint of flavour that you canƒ??t quite nail. In India, dry roasted kalonji is used for flavouring curries, dal, stir-fried vegetables, and even savouries such as samosa, papdis and kachori among others.