Kohada donburi is a comforting and satisfying rice bowl dish that features gizzard shad as the star ingredient. To make this dish, you will need cooked Japanese short-grain rice, kohada fillets, soy sauce, mirin, sugar, and thinly sliced cucumber. Start by preparing the sauce by combining soy sauce, mirin, and sugar in a small saucepan. Heat the sauce over low heat until the sugar dissolves. Set aside to cool. Clean the kohada fillets and slice them into thin strips. Place the sliced cucumber on top of the cooked rice in a bowl. Arrange the kohada slices on top of the cucumber. Drizzle the sauce over the kohada and rice. The combination of the tender kohada, flavorful sauce, and refreshing cucumber creates a delicious and satisfying meal. Each bite is a perfect balance of flavors and textures.