1- Salt and pepper the mackerel fillets with crushed pepper, add the rosé wine on top, let marinate for 30 minutes, then quickly roast in olive oil in a pan.
2- Prepare the sauce
Place the mustard in a salad bowl then add 1 spoon of sugar, salt and pepper, pour in the cider vinegar, the remaining marinade and 8 cl of olive oil, then mix your tomatoes with the sliced shallots, chopped garlic and mint leaves, taste the seasoning.
Plating
In the middle of the plate your beautiful tomato salad topped with your mackerel fillet whole or slightly scattered, then drizzle with your mustard sauce.
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