Clean the mackerel, grill, or pan fry with oil and salt.

Sauce
In a saucepan add the shellfish with the white wine, garlic, thyme, and bay leaf, and cook for 25 minutes.
Strain the juice and reduce with the cream and ginger.
When the sauce has the right consistency, add the lemon juice.

Stew
Clean the white cabbage, brussels sprout and Chinese cabbage.
Blanch them for about 1m in salted water. Cool directly in ice water.
In a pan, cook the cabbage with a little butter, lemon zest, lemon juice, salt and pepper and then add the raw sauerkraut.
Slice very finely the granny smith apples and season them with lemon juice, sesame seed oil and salt.