Try this recipe for koji-glazed salmon, then check out our teriyaki salmon, soy-glazed salmon, miso salmon and more salmon recipes.

You probably won’t have heard of it, but if you like soy sauce, miso or sake, you will have already eaten koji, a natural umami-packed seasoning made of rice fermented with special mould spores, it’s a key component in Japanese cooking, and it’s claimed that it can help strengthen the immune system. You can buy pouches of shio koji – now something of a trend – easily online and in Asian and Japanese grocers.


  • 2 salmon fillets
  • 2 tbsp shio koji
  • 1 pack bok choy
  • to drizzle sesame oil
  • a sprinkle to serve sesame seeds


  • STEP 1

    Put 2 salmon fillets in a shallow baking dish. Spoon over 2 tbsp of shio koji and leave for 15 minutes.

  • STEP 2

    Meanwhile, stir-fry a pack of bok choy until tender and heat the grill to high.

  • STEP 3

    Grill the salmon for 5 minutes then rest for 3 minutes.

  • STEP 4

    Dress the bok choy with sesame oil and sit on warm plates. Top with the salmon and a sprinkling of sesame seeds.


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