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Snapper Escabèche with Charred Spring onions

This elegant snapper escabèche with charred spring onions is a vibrant celebration of fresh seafood and bright, acidic flavours. By lightly grilling the white fish until the skin is crisp and then steeping it in a zesty red onion and vinegar marinade, the flesh remains incredibly moist while absorbing a wonderful depth of seasoning. It is a sophisticated yet simple way to enjoy snapper, highlighting the natural sweetness of the fish against the smoky notes of the grill.

As a diabetes-friendly main course, this recipe focuses on heart-healthy olive oil and lean protein, making it a nutritious choice for a light lunch or a summer dinner. The addition of charred spring onions and flat-leaf parsley adds a lovely textural contrast and a burst of colour. Serve it at room temperature for a relaxed, Mediterranean-style meal that feels truly indulgent.

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Ingredients for Snapper Escabèche with Charred Spring onions

  • 120ml olive oil, divided, plus more for grill

  • 1/2 small red onion, thinly sliced

  • 60ml white wine vinegar

  • Kosher salt, freshly ground pepper

  • 0 freshly ground pepper

  • 4 (170g) skin-on snapper fillets

  • 1 bunch spring onions

  • Parsley leaves with tender stems (for serving)

How to make Snapper Escabèche with Charred Spring onions

Prepare grill for medium-high heat; oil grate. Combine onion, vinegar, and 6 tablespoons oil in a small bowl; season with salt and pepper. Set marinade aside.

Rub snapper all over with 1 tablespoon oil total; season with salt and pepper. Grill, skin side down, until lightly charred and almost cooked through, 4–6 minutes (skin should release easily; if it sticks, grill another minute or two). Turn; grill until just cooked through, about 1 minute. Place skin side up in a baking dish.

Pour reserved marinade over hot snapper and let sit at least 10 minutes (the longer it sits, the more intensely flavoured it will be).

Meanwhile, toss spring onions on a baking sheet with remaining 1 tablespoon oil; season with salt and pepper. Grill, turning often, until lightly charred and wilted, about 2 minutes. Transfer to a cutting board. Let cool; coarsely chop.

To serve, spoon marinade over snapper and top with spring onions and parsley.

Snapper can be marinated 2 hours ahead. Cover and chill.

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.

Article history

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

  • 16 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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