Kæstur Hákarl

I don't think I'll eat this, but I bet if it's around there will be those who try it. This is the Wikipedia article about this acquired taste of Iceland.

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Icelandic for "fermented shark", kæstur hákarl is a food from Iceland. It is a Greenland or basking shark which has been cured with a particular fermentation process and hung to dry for 4-5 months. Hákarl has a very particular ammonia-rich smell and taste, similar to very strong cheese. It is an acquired taste and many Icelanders never eat it.

Hákarl is served as part of a Þorramatur, a selection of traditional Icelandic food served at Þorrablót in midwinter. Hákarl is, however, readily available in Icelandic stores all year round and is eaten in all seasons.

The shark itself is poisonous when fresh due to a high content of uric acid and trimethylamine oxide, but may be consumed after being processed. It has a particular ammonia smell, not too dissimilar from many cleaning products. It is often served in cubes on toothpicks. Those new to it will usually gag involuntarily on the first attempt to eat it due to the high ammonia content. First-timers are sometimes advised to pinch their nose while taking the first bite as the smell is much stronger than the taste. It is often eaten with a shot of the local spirit, a type of brandy, called brennivin. Eating hákarl is often associated with hardiness and strength.

It comes in two varieties; chewy and reddish glerhákarl (lit. "glassy shark") from the belly, and white and soft skyrhákarl (lit. "skyr shark") from the body.

Hákarl is traditionally prepared by gutting and beheading a Greenland or basking shark and placing it in a shallow hole dug in gravelly-sand, with the now-cleaned cavity resting on a slight hill. The shark is then covered with sand and gravel, and stones are then placed on top of the sand in order to press the shark. The fluids from the shark are in this way pressed out of the body. The shark ferments for 6-12 weeks depending on the season in this fashion.

Following this curing period, the shark is then cut into strips and hung to dry for several months. During this drying period a brown crust will develop, which is removed prior to cutting the shark into small pieces and serving. The modern method is just to press the shark's meat in a large drained plastic container.

Chef Anthony Bourdain, who has travelled extensively throughout the world sampling local cuisine for his Travel Channel show No Reservations, has described shark þorramatur as "the single worst, most disgusting and terrible tasting thing" he has ever eaten.

Chef Gordon Ramsay, after challenging journalist James May to sample three "delicacies" (Laotian snake whiskey, bull penis, and hákarl), finally vomited after eating hákarl, although May kept his down. May's only reaction was "You disappoint me, Ramsay."

On season 2's Iceland episode of Travel Channel's Bizarre Foods with Andrew Zimmern, Andrew Zimmern described the smell as reminding him of "some of the most horrific things I've ever breathed in my life," but said the taste was not nearly as bad as the smell. Nonetheless, he did note that hákarl was hardcore food and not for beginners.