Wild turbot with smoked broth and charred vegetables

Cure the turbot 24 hours in advance. Mix the sugar and salt together and pat the mixture all over each fillet, ensuring they are completely covered. Leave for 20 minutes then wash off under cold water and pat dry. Place the fillets on a wire rack and leave uncovered in the fridge overnight to dry out. Remember to bring them out of the fridge for 20 minutes to come to room temperature before cooking

To make the marigold dressing, first make an oil. Place the marigold leaves into a Thermomix with the grapeseed oil and set to 90°C. Blend on the highest speed for 1 minute, then scrape down the sides and blend on speed 3 for 8 minutes. You can use a regular blender if you don't have a Thermomix – just blend until smooth and bright green. Pass through a fine sieve, discard the pulp and chill

To make the dressing, take 100ml of the oil and mix it with the Chardonnay vinegar (but don’t mix it so vigorously that it emulsifies). Transfer to a small plastic bottle ready for plating. You can freeze any remaining oil so that it stays bright green for other dishes

To make the smoked broth, wash and dry the fish bones then roast in a 180°C/gas mark 4 oven for 25 minutes until they are completely dried out, then smoke the bones over hay or wood chips for 30 minutes. This can be done either using a smoker or barbecue

In a large pan, gently cook down the shallots, garlic, fennel and herbs with a splash of oil until soft without colour

Add the smoked bones to the pan and cover with the white wine and fish stock. Gently simmer for 45 minutes; it mustn't boil or be stirred to maintain a nice clear broth. After 45 minutes, pass through a muslin cloth. Season to taste and keep warm

Next, prepare the vegetables. Place a griddle pan over a high heat. Dress the asparagus, spring onions and fine beans with a little olive oil and once smoking hot, place in the griddle pan

Once you have nice bar marks on both sides of the vegetables and they are cooked through but retaining a little bite take them off the heat. Slice into 1cm pieces and place in a bowl with the radishes and peas. Dress with the marigold dressing and a pinch of salt

Now you are ready to cook the turbot. Add enough grapeseed oil to cover the base of a large nonstick frying pan over a high heat. Once hot, place the turbot in the pan on the side where the skin would have been and cook for 3-4 minutes until golden brown

Remove the fish from the pan and place in a bath of the warm broth (uncooked side-down) for 10 minutes to finish cooking

Carefully carve the rested turbot fillets in half and place both halves in a large warm bowl. Spoon the grilled vegetables around the fish and finish with some of the warm broth and a drizzle of good quality olive oil