For the shellfish sauce
Roast your shellfish bones in the oven at 180.c for 30 mins and set aside. Then fry off the carrot , shallot, sprig of thyme , clove of garlic until soft in a pan then add in the white wine and reduce by half, then add in tomato purée, the shellfish bones and cover with water, cook gently for 1 hour.
For the crab bon bon
Use good crab meat from your fish supplier or you can prep crab yourself depending on your skill level. Have a small amount of mash potato ready and mix with the cooked crab meat and a little of grated lemon add salt and pepper, roll in a ball. Dust in the flour, then the egg wash, then coat in breadcrumbs until nice and coated set aside in the fridge once done.
Using the Jerusalem artichokes peel the skin off and add into lemon water to stop it going brown. Fry off in a pan with the butter and thyme, nice and gently until the artichokes are soft.
Once soft add in some cream to bind together and blend, seasoning as you go.
Roast your candy beetroot in the oven. Once soft peel and cut into nice circles and while that is in the oven cook your peeled baby carrots in a pot of water until soft.
For the shellfish reduction
Pass off your shellfish stock, reduce by half, then add some cream and a nob of butter and taste.
For the the wild halibut
To serve fry off your halibut in a hot pan for 3-4 mins then turnover. Add in some butter and baste the fish. Then add in your wild garlic to the same pan to get some of that flavour. Your cooked carrots and beetroot just need cooked in the butter. Fry the crab bon bon until golden brown.
Heat up some of your artichoke puree in a small pan until hot, you may also want to keep some artichokes to garnish on top. Plate as desired.