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 brännvin and vodka, because that's the only way anyone can undergo this insane custom. Us kids just had to suffer through it.