Many many Swedes and Norwegians have suggested that I made a comic about surströmming, which is mainly a Swedish dish, but can also be found in some parts of Norway. It smells so bad that it is mainly eaten outside in the summer, and many Swedes enjoys exposing Danes to it just to see their look of horror at the smell.
Hákarl is a special Icelandic dish made of rotten shark, that is more traditional than normal, though you can still find it in supermarkets. It is said to be the most disgusting food in the world.
Pickled herring can be found in all Nordic countries, and is particularly popular in Denmark. In fact, a Danish adult who doesnt like pickled herring is seen as rather weird.
And non of this is of course supposed to be eaten like this. You are supposed to put it on bread.
And to the newcomers: Skål is the Nordic word for cheers.