Hake, tomato and crab

The day before you plan to serve the dish, begin by preparing the marinated tomatoes. Preheat an oven to 100°C/gas mark 1/4

Slice the tomatoes into thick rounds and lay out in a single layer on a baking tray. Place in the oven to dry out for 40 minutes, turning halfway through the process. Remove from the oven and transfer the tomato slices to a container. Whisk together the marinade ingredients and pour over the tomatoes. Seal the container and set aside in the fridge to marinate for 24 hours

The next day, prepare the spring onion oil. Place all the ingredients in a blender and blitz for 5 minutes. Place in the fridge to chill, then blend for a further 5 minutes

Pass through a sieve lined with muslin to a clean, upright container and leave to rest in the fridge. The oil can be used for up to 5 days. When ready to use, skim the oil from the top of the container

Break down the crab by twisting off the claws and legs. Separate the body from the main shell. Remove the feathery dead man’s fingers from the body, as these should not be eaten, and use a spoon to scoop out the brown meat. Set aside in a bowl

Crack the claws open using the back of a knife or a meat mallet and take out the white meat. Use a skewer to pick out the rest of the white meat from the body and the legs. Check the meat to make sure no fragments of shell remain. Set the meat aside in the fridge and weigh the crab shells and legs – you’ll need 250g for the sauce

To make the crab sauce, place a pan over a medium heat and add a dash of oil. Brown the carrot, celery, onion, leek and lemongrass. Add the crab shells and cook for a few more minutes until coloured

Add the brandy to the pan and allow the alcohol to burn off. Add the chicken stock, wine and tomato paste, bring to the boil and turn down to a simmer. Chop the herbs and add to the stock, leaving to simmer for 30 minutes

Pass the stock through a fine sieve into a clean pan and reduce by three-quarters. Add the cream and reduce by half. Add a splash of lemon juice and season to taste. Pass through a fine sieve and set aside

When ready to serve, preheat an oven to 180°C/gas mark 4

Remove the white crab meat from the fridge and stir through the lemon juice. Combine the kimchi liquid, mayonnaise and harissa, adding a little more kimchi liquid to taste if necessary. Stir this through the crab meat and season to taste

Gently rub a little oil over the hake portions and season well. Preheat a frying pan over a very high heat and sear the hake for a few minutes on each side until golden

Transfer the hake to the oven until the temperature of the centre of the fish reads 32°C on a temperature probe. Remove and rest for 10–15 minutes – the internal temperature of the fish will rise to 42°C during this time

Gently reheat the sauce and blitz with an immersion blender until the sauce is frothy. Transfer to a jug and split with some of the spring onion oil