Most commonly, oyster sauce is used to add a briny twist to noodle dishes and vegetable stir-fries. Known for its dark brown color and smooth consistency, the main ingredient of this flavorful sauce is minced oysters and the juices contained therein. Extra ingredients typically include sugar and soy sauce.
Although oyster sauce is prized for its seafood friendly flavor, experts recommend avoiding the cheaper, plastic-bottled variety in favor of higher-end versions in glass containers. Simply put, the less you spend; the "fishier" you can expect the sauce to taste. Once the bottle has been opened, be sure to store it in the refrigerator to help it last longer.