In cooking, master stock refers to an aromatic, reusable stock in which meat is poached. Master stock has its roots in Chinese cooking and the base stock is made from typical Chinese ingredients: water, soy sauce, rock sugar, garlic and ginger. A variety of other spices and flavourings are usually also added such as scallions, shallots, star anise, dried citrus peel, cassia bark, Chinese rice wine, Szechuan pepper, dried mushrooms.