There are good commercial teriyaki sauces and marinades available, or you can make your own by combining equal quantities of light soy sauce and mirin.
The name comes from the Japanese words “teri” meaning shine and “yaki” meaning grill, as meat and fish are brushed with the marinade while being grilled to give a shiny coating.
This recipe is a super easy way to marinate fish in less than 20 minutes but still packed full of flavour!