Question: is oyster sauce made from oysters?
Answer: Yes, it's made from oysters. And yes, you should be cooking with it. ... Oyster sauce is, as advertised, made from oysters. It's a mixture of caramelized oyster juices (a byproduct of cooking oysters in water for a prolonged period of time), salt, sugar, and sometimes soy sauce that is thickened with cornstarch.