Mackerel rillettes

Main course: serves 4. Total time: 20 minutes, plus 2 hours poaching

Marinade:

Rillettes:

Place all the ingredients for the marinade in a large cast-iron casserole, bring to a rolling boil, then immerse the mackerel in the marinade, cover with a lid, turn off the heat and leave to cool for several hours or overnight.

Remove the mackerel to a board, and carefully fillet them. Place the fillets in a large bowl and mash with a fork, then add the mayonnaise, the cream and chives, and blend together. Season with salt, black pepper and a little cayenne pepper, add the vinegar and chopped shallot and mix again. Cover and chill if not serving straight away, but bring back to room temperature before eating.