Black Powder Salt, also called Kala Namak, has a characteristic sulfurous sour flavor. Try sprinkling it on fresh cut fruit such as apples and bananas for a delicious treat. Can also be used to replace sea salt or table salt. Black Powder salt is appreciated by vegans in dishes that mimic the taste of eggs. It is used, for example, to spice tofu to mimic an egg salad.
It is also regularly used in small quantities in chutneys, raitas, pickles and many other savory Indian snacks, adding a very different flavor than just using regular salt.