Before you start, cook your rice using your preferred method and keep it warm. This recipe uses 660 g cooked Japanese short-grain rice (one Japanese rice cup contains 150g raw rice and yields approx 330g cooked rice).
Sprinkle 200 g salmon fillets with ¼ tsp salt on both sides and rest for 15 minutes. Thinly slice 100 g mushroom of your choice, julienned 100 g carrots and 1 tbsp ginger root and shred 5 shiso leaves.
After 15 minutes, pat the salmon fillets dry with kitchen paper.
Heat a pan on medium and add 1 tsp cooking oil. Place the salmon fillets skin side down and fry for 2 minutes undisturbed. Flip and fry on the other side for 2-3 minutes.
Add the mushrooms, carrots and ginger to the pan and stir fry everything together while breaking the salmon into flakes with a spatula.
Once the vegetables have softened, push everything to one side and pour 2 tsp mirin into the empty space. Let it bubble for 10-15 seconds, then add 1½ tbsp Japanese soy sauce (koikuchi shoyu) and let it bubble and reduce for about 10-15 seconds.
Mix the salmon and vegetables into the reduced mirin and soy sauce until evenly distributed, then turn off the heat and stir in 1 tbsp unsalted butter until it's melted and coated the mixture.
Pour ¼ tsp rice vinegar and 1 tbsp ground sesame seeds over the 660 g cooked Japanese short-grain rice. Fold them in with a rice paddle.
Add the contents of the pan to the rice and mix with a rice paddle using a cut and fold motion so that you don't crush the rice.
Taste test and add more soy sauce or sesame seeds to taste.
Divide into serving bowls and top with kizami nori (shredded nori) and the shredded shiso leaves. Enjoy!
Notes
Stop mixing after 10-15 folds once ingredients are evenly distributed. Over-mixing breaks down the rice grains and creates a heavy, gummy texture .If using leftover rice, reheat it until steaming hot with added moisture before mixing. The rice must be hot when you mix in the salmon mixture.If using store-bought salmon flakes, reduce the soy sauce by half and toast the flakes briefly in a dry pan. Pre-seasoned flakes are already salted.You can prep the salmon and vegetable mixture up to 3 days in advance and store it in the fridge. Mix it with freshly cooked hot rice right before serving to prevent moisture migration.Refrigerated maze gohan becomes hard and loses its springy texture within 1-2 day.Cool the mixed rice completely before freezing to prevent condensation.Serving ideas:Authentic Miso Soup, Spinach Ohitashi, Dashimaki Tamago, Kinpira Gobo