Pour the marinade over the salmon (see note 2). Refrigerate. The salmon is ready to eat after 4 to 5 hours, but it will be better the next day and best to consume it within 2 days.
Garnish it with optional thin slices of fresh onion and/or microgreens or baby sprouts. Spoon some marinade over the salmon and rice. Serve wasabi on the side if you like.