Grace Parisi learned to make unagi Kabayaki—grilled eel—by watching YouTube’s Cooking with Dog. Since eel is fairly hard to find, she often substitutes trout, which is a bit leaner than eel but similar in flavor.More Japanese Recipes
In a medium saucepan, bring the soy sauce, mirin, sugar and vinegar to a boil. Simmer over moderate heat until the glaze is reduced to about 1 1/2 cups, about 10 minutes.
Meanwhile, in another medium saucepan, combine the dashi with 1 1/2 cups of water and bring to a boil. Add the carrots and leeks and simmer just until crisp-tender, about 1 minute. Remove from the heat and let stand.
Preheat the broiler and position a rack 6 to 8 inches from the heat. Arrange the trout fillets on a sturdy baking sheet, skin side up, and broil for about 2 minutes, until the skin begins to sizzle. Carefully peel off the skin. Brush the fish with some of the glaze and broil for 3 minutes, brushing once or twice more, until the sauce is lightly caramelized. Turn the fillets, brush liberally with more glaze and broil for 3 minutes longer, brushing once or twice, until the trout is cooked through and lacquered.
Mound rice in shallow bowls and drizzle lightly with the glaze. Using a slotted spoon, add the carrots and leeks. Top with the fish and nori and spoon the dashi into the bowls. Serve with the remaining glaze on the side.
Lightly sweet, full-bodied Riesling.