Saba misoni is a traditional fish dish originating from Japan. The dish is usually made with a combination of mackerel fillets, sake, soy sauce, mirin, miso, and sugar. The fillets are cooked in a pan with sugar, soy sauce, water, sake, and mirin.
The sauce is occasionally spooned over the fish, and some of it is blended with the miso. The mixture is poured back into the pan and the sauce is reduced as the dish cooks over low heat. Once done, the mackerel is topped with the sauce and served on plates.