Salt is melted at 900°C, boiled with fruit, cooled, and ground. Sulfur compounds create an aroma reminiscent of boiled egg and onion.
Use:
Kala namak turns black when used in liquid, as on a slice of cucumber, for example. It is used sparingly to flavor sweets, chutneys, and fresh and exotic fruits. Use it only after cooking. The desired flavor can be achieved even with small amounts.
Ingredients:
Pak. Crystal salt (Pakistan, India), Terminalia chebula - fruits.