Place it into 10l (10 quart) of water with 60 gr (2 oz) of dissolved sea salt for 15 minutes (this prevents the fish from losing moisture during cooking).
Portion the cod into 160 gram (3 ⅔ oz) pieces.
Cook on the flat top grill to get a nice crust on the skin (7-8 minutes).
Cauliflower Mousseline
Wash, trim and crush the cauliflower, put it in a vacuum bag with milk, chicken bouillon and the aromatic bouquet.
Cook in a steam oven (90 °C/ 195°F) until the cauliflower detaches on finger pressure (+/- 35 minutes).
Drain and put in the thermomix with butter and a little cooking liquid.
Strain through a fine sieve, cool and vacuum pack it.
Hazelnut and Xérès Emulsion
Melt the brown butter, then add the hazelnut oil and then the Xérès vinegar vinegar and the veal jus.
Emulsify and adjust seasoning.
Keep at room temperature.
Speculoos Butter
Soften the butter, add the powdered speculoos.
Mix with a spatula evenly and add the salt and thyme leaves.
Store at room temperature in order to make dumplings.
Garnish
Mandolin the cauliflower floret and keep between 2 moistened wipes before dressage. Roast the whole hazelnuts at 160 °C/ 320° F for 8 minutes and keep in an airtight container.
Wash and put branches of pimpernels and fresh thyme.