Corned beef brisket with mustard and pickles

Begin by preparing the brine for the beef. Combine all of the ingredients in a large pan and bring to the boil. Once boiling remove from the heat and allow to cool, then submerge the brisket and leave to brine in the fridge for seven days

Combine the carrot, onion, celery, leek and garlic with the water and herbs in a large pan. Bring to the boil then turn down to a simmer. Add the brined beef to the pan and cook for 3-4 hours until tender. Remove the pan from the heat and leave the beef to cool in the braising liquor

Once the beef has cooled dice it and run it through a meat mincer on a coarse setting along with the pork fat and pork belly. Place the minced meats into a large mixing bowl and thoroughly combine, then add the capers, cornichon, onion, mustard, pepper and fish sauce and mix well

Adjust the seasoning if necessary, then place the corned beef mixture into a terrine mould or metal frame lined with cling film. Cover the top of the corned beef with more cling film, press with a weight and leave to set in the fridge overnight

Remove the corned beef from the fridge and lift it out of the mould. Using a sharp knife cut the corned beef into even slices and neatly brush the presentation face of the beef with the wholegrain mustard. Evenly sprinkle the mustard seeds and chopped chives over the top and serve immediately with fennel fronds, caper berries, cornichons and sliced gherkin