5: In a large pan boil about 2 litres water, add 2 tablespoons coarse salt.
6: Put in carrots, bring back to the boil, and cook for about 2 or 3 minutes until the sticks are soft.
7: Remove carrots from boiling water, and put them in cold water.
8: When they have cooled completely, drain and set aside.
9: Continue like this for all the vegetables, without changing cooking water, which is becoming the vegetable stock for cooking the fish. Set vegetables aside.
10: Wash 1 piece Fish, it's not necessary to remove skin and bones now, that will be much easier when fish is cooked.
11: Put fish into the vegetables broth, over a low heat. Cook gently, without boiling, just barely simmering, until it becomes opaque (about 40 minutes). A better method: cook until internal temperature reaches 70°C or 158°F (an electronic thermometer is useful). Once at this temperature, the fish is cooked, and longer or hotter cooking serves no purpose.
12: When fish is cooked, you can now easily remove skin, bones and other bits to keep only the very best of flesh. Note: Up to this point everything can be prepared in advance, like the day before.
14: Pour in vegetables, heat through thoroughly stirring round from time to time, then add 200 ml cream.
15: Add fish.
16: Mix well, season, and serve as soon as the mixture is nice and hot.
Remarks
You can use any kind of fish for this recipe, but it's a good opportunity to use cheaper kinds, and the fish can be prepared beforehand. If you don't wish to use cream, it's not essential.