Poached Arctic Char with Basil-Tarragon Mayonnaise
Peer reviewed by UK recipe editorsAuthored by UK recipe editorsOriginally published 16 Jan 2026
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This poached arctic char with basil-tarragon mayonnaise is a sophisticated yet simple dish that celebrates delicate flavours and fresh ingredients. Arctic char is a wonderful alternative to salmon, offering a milder taste that pairs beautifully with the aromatic notes of fresh tarragon and basil. By poaching the fish gently off the heat, you ensure a soft, buttery texture that remains perfectly moist, making it a reliable technique for any home cook looking to master seafood.
As a diabetes-friendly main course, this recipe focuses on high-quality proteins and heart-healthy fats from the extra-virgin olive oil. The vibrant green herb mayonnaise can be prepared up to two days in advance, allowing you to assemble this nutritious meal in mere minutes. Serve alongside tender steamed asparagus for a light, low-carbohydrate dinner that feels truly indulgent without compromising on health.
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Ingredients for Poached Arctic Char with Basil-Tarragon Mayonnaise
2 large egg yolks*
2 tablespoons fresh lemon juice
1 tablespoon mustard powder
1/4 cup fresh basil leaves
1/4 cup fresh tarragon leaves plus 2 sprigs
180ml extra-virgin olive oil plus more for serving
1 garlic clove, smashed
2 tablespoons kosher salt plus more
170g arctic char steaks, each about 1 1/4" thick
2 bunches asparagus (about 675g), trimmed
Flaky sea salt (such as Maldon)
How to make Poached Arctic Char with Basil-Tarragon Mayonnaise
Blend egg yolks, lemon juice, and mustard powder in a blender. Add basil and 1/4 cup tarragon. With machine running, drizzle in 180ml oil; blend until smooth. Transfer mayonnaise to a small bowl, cover, and chill.
Combine tarragon sprigs, garlic, 2 tablespoons kosher salt, and 1450ml water in a large deep, lidded skillet and bring to a boil. Add fish, cover, and remove skillet from heat. Let stand until fish is just opaque in the centre, 6-8 minutes.
Meanwhile, cook asparagus in a large pot of boiling salted water until crisp-tender, about 3 minutes; drain
Serve fish with asparagus; top with mayonnaise, drizzle with some oil, and sprinkle with sea salt.
DO AHEAD: Mayonnaise can be made 2 days ahead. Keep chilled.
Clause de non-responsabilité
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.
Historique de l'article
Les informations contenues dans cette page ont été évaluées par des cliniciens qualifiés.
16 janvier 2026 | Publié à l'origine
Auteur: :
UK recipe editors
Examiné par des pairs
UK recipe editors

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