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Minted Mackerel and Mushroom Escabeche

This minted mackerel and mushroom escabeche is a sophisticated, heart-healthy dish that celebrates the vibrant flavours of the Mediterranean. By lightly frying fresh mackerel and then marinating it in a warm, acidic dressing of white-wine vinegar, dry vermouth and lemon, the oily fish takes on a wonderful depth and tang. The addition of earthy wild mushrooms and a punch of fresh mint provides a beautiful contrast to the richness of the fillets.

Perfect for a light lunch or an elegant starter, this recipe is designed to be prepared ahead and served at room temperature, allowing the flavours to fully develop. Mackerel is an excellent source of omega-3 fatty acids, making this dish as nutritious as it is delicious. Serve with grilled sourdough to soak up the fragrant, herb-flecked oil.

Continue reading below

Ingredients for Minted Mackerel and Mushroom Escabeche

  • 4 (6-to 200g ) Spanish mackerel fillets

  • 2 tablespoons plain flour

  • 120ml plus 3 tablespoons extra-virgin olive oil, divided

  • 1 red onion, sliced into thin rounds

  • 110g mixed fresh wild mushrooms, sliced

  • 1/2 teaspoons coriander seeds, lightly crushed

  • 1/8 teaspoons hot red pepper flakes

  • 4 strips lemon zest

  • 120ml dry vermouth

  • 45ml white-wine vinegar

  • 1 tablespoon fresh lemon juice

  • 1/2 cup coarsely chopped mint

How to make Minted Mackerel and Mushroom Escabeche

Pat fish dry and season with 1/2 teaspoons each of salt and pepper, then dredge in flour, shaking off excess.

Heat 45ml oil in a 12-inch heavy skillet over high heat until it shimmers. Cook fish, skin side down first, turning once, until cooked through, crisp, and golden on both sides, 3 to 4 minutes total. Transfer fish to a large baking dish (not aluminum) and wipe out skillet.

Add remaining 120ml oil to skillet and cook onion over medium heat, stirring occasionally, until softened, 3 to 4 minutes. Add mushrooms, coriander, red pepper flakes, zest, and 1/2 teaspoons salt and cook, stirring occasionally, until mushrooms are golden, about 5 minutes. Stir in vermouth.

Remove from heat and stir in vinegar and lemon juice, then pour over fish. Cool to room temperature, about 30 minutes. Transfer fish to plates. Stir mint into mushroom mixture and spoon over fish. Serve at room temperature.

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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