shitake soy sauce is a soy sauce made from dried shitake mushrooms. shitake mushrooms are commonly used in asian cuisine and have a savoury, umami flavour. shitake soy sauce has a unique, aromatic flavour, thanks to the presence of shitake mushrooms in its composition. It can be used in the same way as traditional soy sauce, to add flavour to noodle, vegetable and meat dishes, as well as to marinate food before cooking. It can also be used to season sauces, dressings and marinades.