Himalayan black salt is a mineral rock salt from India, with a distinct flavour that adds a touch of acidity and a mild aroma reminiscent of egg. It’s a very well-known volcanic salt variety and its greyish colour is due to its mineral composition which contains iron, sulphur, and magnesium, making for a condiment with a high nutritional value since it is richer than other types of salt in iron and sulphates.