what is unagi sauce

Unagi sauce, also known as eel sauce or kabayaki sauce, is a thickened and sweetened soy sauce that is commonly used in Japanese cuisine. It is a key component of grilled eel dishes, but it is also versatile and can be used as a glaze for other grilled meats, as a dressing for noodles, or as a dipping sauce for sushi. The sauce is made from a combination of mirin, sake, soy sauce, and sugar, which are simmered together until thick and syrupy. Authentic unagi sauce does not use rice vinegar, garlic, ginger, or cornstarch. While the sauce is traditionally made from a broth of grilled eel bones, most restaurant chefs now use a combination of sake, mirin, soy sauce, and sugar.