Never eat a "delicacy" in any country where parts of the traditional cuisine inspired alcoholic beverages strong enough to make you not care what you were putting in your gob.
I have a similar policy for consuming anything whose recipe was created in a time of famine.
well he said the correct way to eat it is washed off of fermented juice, on toast, with plenty of fresh onion on top. Which would do a good job of removing most of the odor and diluting/enhancing the flavor.
I think I remember a Swedish embassy somewhere was built with a rooftop dining area specifically so that this could be served.
As a little kid growing up in Scandinavia, I spent a few of my summers at a summer residence that neighboured a family of Swedes. Each Midsummer's Eve, they would shamelessly open one of these cans and piss all of my relatives off. The stench was unbelievable, and would easily travel within a mile radius.
Within half an hour, all the adults would become completely smashed on br�nnvin and vodka, because that's the only way anyone can undergo this insane custom. Us kids just had to suffer through it.