Mix the teriyaki sauce

• Stir the soy sauce, mirin, sake and sugar in a bowl until the sugar dissolves.

Sear the salmon

• Heat the oil in a frying pan over medium-high heat.
• Place the salmon fillets skin side down and sear until the skin is crisp and golden.

Glaze with teriyaki

• Flip the salmon and cook briefly on the other side.
• Pour in the teriyaki sauce and spoon it over the fillets until it thickens into a glossy glaze.

Serve

• Transfer the salmon to plates, drizzle with the remaining glaze.
• Sprinkle with sesame seeds and spring onion.