Fiskisupa (Nordic fish soup)

For ➍
700 g cod fillet
1 kg mussels
2 celery stalks
3 leek whites
¼ celeriac
2 onions
5 dl water
1 dl white wine
30 g butter
1 bay leaf
some sprigs of chives
pepper & salt
150 g samphire
5 dl chicken broth

Chop the leeks, cut the peeled celeriac into small cubes and chop 1 onion. Fry them 5 m on medium heat in a stew pan with the melted butter.
Add the stock, the water, the bay leaf, pepper and salt.
Bring to the boil and simmer for 20 m on low heat. Let rest 5 m, remove the bay leaf and mix finely.
Meanwhile, clean the mussels and put them in a small casserole with chopped celery and 1 chopped onion. Put the lid on the pan and cook the mussels on a high heat, until they open (± 5 m). Shake the pot occasionally. Pour the cooking liquid into a decanter, and pour it slowly into the soup.
Put the samphire and wine in a small sauté pan. Put the chopped cod on top of it, put the lid on the pan and heat gently. Remove from the heat as soon as the wine is boiling and leave to rest 5 m. Season with pepper and salt. [Just before serving, add a lick of cream and give another twist to the pepper mill.]*

Arrange the pieces of fish with the samphire and the mussels in deep plates, pour over the hot soup and serve immediately, sprinkled with chopped chives.

*Optional.