Fill a saucepan with water, add a tablespoon of salt and bring to a boil. Divide the fish into 4 equal pieces. Turn the heat off once the water starts to boil and add the salmon to the pan.
2
Let the salmon soak for at least 25 minutes, then let the salmon cool in the water for a few minutes before taking it out and putting it in the fridge. The salmon will be served cold.
3
Boil water with lemon juice and sugar. Let cool.
4
Cut the cucumber into strips using a potato peeler. Do not use the outer layer or the core of the cucumber. Put in the lemon- and sugar water and leave it in for at least 30 minutes. You can also make this the day before.
5
Put sour cream and a little sugar in a bowl. Whisk with a hand mixer until it turn creamy and stiff.
6
Rinse and clean the potatoes. Boil in a saucepan for 10-15 minutes until It becomes al dente. Melt butter in a pan, divide the potato in two and add to the pan. Season with flaked salt and pepper.