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Kombu-Cured Salmon with Fresh Yuzu Kosho

This elegant kombu-cured salmon offers a sophisticated fusion of Japanese flavours that is surprisingly simple to achieve at home. By sandwiching the fish between sheets of dried seaweed, the salmon becomes infused with a deep, savoury umami quality while maintaining a beautifully firm texture. The addition of a light miso glaze provides a delicate sweetness that perfectly complements the rich, oily flakes of the grilled fish.

As a diabetes-friendly main course, this dish is naturally low in carbohydrates and packed with heart-healthy omega-3 fatty acids. The homemade yuzu kosho adds a vibrant, spicy citrus kick that elevates the salmon without the need for heavy sauces. Serve these fillets with steamed seasonal greens or a crisp radish salad for a fresh, nutritious meal that feels truly indulgent.

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Ingredients for Kombu-Cured Salmon with Fresh Yuzu Kosho

  • 1 (675g) piece boneless salmon fillet

  • 4 (6x5-inch) pieces dried dashi kombu (should be flat and not wrinkled)

  • 1/2 lemon, thinly sliced, seeds removed

  • 2 tablespoons mirin (sweet Japanese rice wine)

  • 1 tablespoon mild miso (such as white or yellow)

  • 1 teaspoon soy sauce

  • 1 jalapeño, seeds removed, chopped

  • 1 serrano chilli, seeds removed, chopped

  • Kosher salt

  • Zest and juice of 1 yuzu or zest of 1/8 white grapefruit, 1/2 lemon, 1/2 lime, and 1 tablespoon mixed juice from all three

  • Nonstick vegetable oil spray

  • Yuzu or lime wedges (for serving)

Slice salmon on a diagonal into four 1"–1 1/4"-thick fillets. Place 2 kombu sheets in a 13x9" glass baking dish or other nonreactive vessel. Lay salmon on top of kombu and top with remaining kombu so that salmon is completely covered. Lay lemon slices on top. Cover and chill at least 12 hours and up to 2 days.

Whisk mirin, miso, and soy sauce in a small bowl until smooth. Set glaze aside.

Toss jalapeño and serrano chilli with a large pinch of salt on a cutting board and mash with the side of a chef’s knife until a coarse purée forms. Transfer to a small bowl. Mix in yuzu zest and juice; season yuzu kosho with salt. Set aside.

Heat grill. Lightly coat a broilerproof baking sheet with nonstick spray. Uncover salmon and transfer to baking sheet; discard kombu and lemon. Spread reserved glaze evenly over top of salmon and grill until flesh is very dark around the edges and opaque throughout, about 4 minutes.

Top salmon with reserved yuzu kosho and serve with yuzu wedges for squeezing over.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

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UK recipe editors

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UK recipe editors

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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