Kenji's go-to. Charred, sweet, savory exterior β rare to medium-rare center. The miso does double duty: brines the flesh (keeps it moist) and acts as an insulator (lets the interior stay cool while the outside chars). Sugar + oil drive the caramelization. Five minutes under the broiler. That's it.
Toaster oven works great and doesn't blast the whole kitchen. Trick: prop the door open slightly with tongs β keeps the broiler element cycling on constantly instead of pulsing.
Can marinate up to 2 days ahead. 30 min minimum if you have time, cook immediately if you don't β both work.
Whisk together miso, sake, soy sauce, oil, and sugar until smooth. Rub over every surface of the salmon fillets. Transfer to a zip bag or sealed container.
Cook immediately OR marinate in the fridge for 30 min up to 2 days. Longer = better moisture retention and flavor penetration.
Preheat broiler (toaster oven or regular oven) to high. Line a broiler pan with foil.
Wipe excess marinade off salmon β leave just a thin coating. Place on the foil-lined pan.
Broil until top surface is well charred and center is barely warm β about 5 minutes. Use the foil as a shield if one section is browning faster than the rest.
Pull when center hits 115β125Β°F (rare to medium-rare). That's the target. Don't overcook it.
Serve immediately. Rice is the classic move. Wilted greens alongside work well.
Estimated from the ingredients β amounts and serving size vary, so treat it as a ballpark.