Black salt, also known as rock salt, kala namak or saindhav, is an important flavouring in Indian cuisine.Black salt is mined in India, with black salt crystals ranging in colour from amber to dark brownish-black, hence the name. When finely ground, black salt is brownish-grey in colour.

Black salt has a noticeable sulphurous aroma and a distinctive smoky taste. In Indian cookery, black salt is a key ingredient in chat masala, the spice mixture used to flavour appetizers, salads and street food snacks. Use black salt to add aroma to tandoori chicken marinades, to flavour raitas and, for a classic Indian beverage, add to fresh lemonade.