Mishri is a rock sugar. Rock sugar is made from a solution of sugar cane and palm sap. This palm sugar is found in the form of mishri, which is packed with nutrients. Rock sugar is rich in vitamins, minerals and essential amino acids. An important vitamin, vitamin B12, is also found in mishri in good amounts. These tiny forms of rock sugar are said to be a pretty healthy candy. Mishri is not only a healthier alternative to table sugar, but it also has a number of health benefits.