A big tradition in Sweden! Crayfish feast, or Kräftskiva in Swedish, means to peel and eat crayfish, crab, and shrimps of all sizes. There is not really a recipe for this meal, you have to keep in mind though that the main ingredient is the “freshness” of the crayfish, and Aquavit, the local schnapps you drink during the Kräftskiva, singing Swedish songs.
Boil water, add a lot of salt (like sea water) and dill crowns. Depending on the size of the crayfish, they take like 3 to 7 minutes. The water should just simmer once the crayfish are in.
The sauce served with it is called Romsaus. The recipe is very easy, but the result is amazing! You mix together crème fraiche, roe (Swedish kind of caviar you almost find in every dish) and finely chopped dill. You can also use mayonnaise as a base for the sauce instead of crème fraiche, but in my opinion it tastes better without mayonnaise.