Our BEST Oyster Sauce Substitutes – The Kitchen Community For instance, if your recipe calls for 1 tablespoon of oyster sauce, mix together ½ tablespoon each of hoisin sauce and soy sauce. Homemade oyster sauce To make this, you will need half a pound of shucked oysters, salt, and soy sauce. Drain the liquid from the shucked oysters and place this to one side. Cut the oysters finely into a mince.