Every year, in a Serbian village a few kilometers from the town of Gornji Milanovac, teams gather around cauldrons to cook testicles. Not as a dare, and not as a joke played on tourists. It's a cooking championship with judges, a trophy called the Balls Cup, and a crowd that comes back every summer. And it isn't even the strangest thing Europeans do with food in the name of tradition. Sweden has a day when people open tins of fermented fish, Iceland has a midwinter feast built around rotten shark, and Scotland throws its national dish across a field. Here are the festivals that are real, still running, and open to anyone who's curious enough to show up.
Why Europe Celebrates Its Strangest Food
Most of these dishes began as practical answers to a hard problem. Before refrigerators, you either preserved food or you lost it. Fermenting, salting and drying were how a farmer got fish or meat through a Baltic or Icelandic winter. And when you slaughtered an animal, you used all of it, because a poor household couldn't afford to throw away the liver, the lungs or the testicles.
The festivals came later, and they're a different thing from the food itself. A dish that was once simply dinner becomes a reason to gather, to sing, to argue about the right recipe. There's also a line between tradition and stunt, and it's worth knowing where each event sits. Haggis hurling, for example, was invented as a prank in 1977 and nobody pretends otherwise. The Swedish herring tradition is centuries old. The Serbian championship sits somewhere in between, which is part of its charm.
Serbia: The World Testicle Cooking Championship
The event is officially the World Testicle Cooking Championship, run by the organization Mudijada and held every year since 2004. The organizers' own site spells it Mudrijada, and the contest is also known as the Balls Cup. The cooking happens in the villages around Gornji Milanovac, in the Šumadija hills of central Serbia. Wikipedia names Ozrem and Lunjevica as the host villages.
What goes in the pot is testicles, which Serbian slang politely calls "white kidneys" (beli bubrezi), and the menu has included game animals as well as farm ones. The event also hands out tongue-in-cheek awards to "ballsy" public figures. In 2010 the list included Barack Obama, Donald Trump and the pilot Chesley "Sully" Sullenberger. The whole thing sounds like a village fair that happens to have an unusual main course.
When: late summer. The national tourist board listed the 2026 edition for 28 and 29 August, though other sources put it in September, so for 2027 check the organizer's site, ballscup.com. How to get there: Gornji Milanovac is in central Serbia, a trip from Belgrade by road, so a rental car is the practical way. Our 5 days in Belgrade guide is a good base, and a Serbian beer or a glass of slivovitz goes well with the day. Ask the organizers whether visitors can taste the entries, since the tasting is most of the appeal.
Lleida, Spain: A Weekend of 12 Tonnes of Snails
Snails are the least shocking item on this list, until you see the scale. The Aplec del Caragol in Lleida, Catalonia, has run since 1980 on a May weekend along the river Segre. In 2010 it drew about 200,000 visitors and they ate around twelve tonnes of snails. The 2026 edition, the 45th, ran from 22 to 24 May at the Camps Elisis.
The format is the unusual part. Local clubs, the penyes (124 of them in 2026), cook and eat together at the grounds, with brass bands and parades through the city. Entry is free, and local reports describe a festival that began as an unauthorized lunch by the river in 1980, with about 300 people. Book a room in Lleida early, since a crowd of 200,000 is a lot for one city. Barcelona is the usual gateway, and our 5 days in Barcelona guide covers the rest of Catalonia's food.
If you want snails without a crowd of 200,000, Italy has smaller versions. The Sagra della Lumaca, the snail feast, in Cortona ran from 29 May to 7 June in 2026. Dates shift, so check the local tourist office each year.
Sweden: Surströmming Day
Surströmming is Baltic herring fermented for at least six months, and its smell is often ranked among the worst of any food. It's not a festival in the strict sense, but the "premiere" works like one. A royal ordinance issued at the end of the 1940s banned sales of the new year's tins before the third Thursday of August. The ordinance is no longer in force, and retailers still keep the date. In 2026 that Thursday was 20 August.
Swedes take the ritual seriously. Per Visit Sweden, you open the tin under water in a basin so the brine doesn't spray, then rinse and gut the fish. It goes into buttered flatbread (tunnbröd) with almond potatoes and diced onion, with beer and snaps alongside. Eat it outdoors, because of the smell.
Can visitors join? Yes, but keep it out of your hotel room. The easiest way is a local who invites you to a tin outdoors. Stockholm is the easy entry point, and the 5 days in Stockholm guide is a start. The tins go on sale from the third Thursday of August, so plan for mid to late August.
Iceland: Þorrablót and the Rotten Shark Table
Þorrablót is Iceland's midwinter feast, held during Þorri, the old fourth winter month. It begins on a Friday called Bóndadagur, the Farmers' Day, in the second half of January. By the calendar rule that's Friday, 22 January in 2027. Feasts are held all around the country, so there's no single event to book.
The platter is the attraction. Guide to Iceland lists lamb's heads, ram's testicles, cured shark and rye bread as classic Þorramatur, built on smoked, pickled, salted and dried food. The shark is hákarl, Greenland shark that's fermented and then hung to dry for four to five months, with a strong smell of ammonia. Yes, ram's testicles show up here too, which makes a neat link back to Serbia, only served cold and cured.
How to go: fermented shark is sold in Icelandic stores and eaten year-round, so a visitor can try it without a local invitation. Þorri itself is the season to see the full platter, but check what's on offer before you book. Our 5 days in Reykjavik guide covers the city.
Scotland: Haggis, Burns Night and Hurling
Haggis is sheep's heart, liver and lungs minced with onion, oatmeal, suet and spices, traditionally cooked in the animal's stomach. It's the national dish largely thanks to Robert Burns and his 1786 poem "Address to a Haggis". The festival is Burns Night, around 25 January, the poet's birthday. A Burns supper has a script: the haggis is carried in, the poem is recited, a knife goes in, and it's served with neeps and tatties and a dram of whisky.
Haggis hurling is the comic cousin. Its inventor said he made it up as a prank for the 1977 Gathering of the Clans in Edinburgh, and today the record stands at 217 feet, set at the Milngavie Highland Games in 2011. The rule that makes it funny: a burst haggis is disqualified, because it has to be fit to eat afterward. Edinburgh is the natural base, and our 5 days in Edinburgh guide has the city. Burns suppers are held around the world, usually on or near 25 January, so if you want a seat at one, book ahead.
Planning Your Trip, and One Cheese to Skip
A few practical rules cover most of these events. Dates move, so go to the organizer's page the year you travel. Rooms in small places, Gornji Milanovac and Lleida above all, sell out well in advance. Vegetarians will struggle at most of these, since the animal is the point. Alcohol is part of nearly every one of them, so plan the drive home. And treat the food with respect: the people cooking it grew up on it.
One curiosity needs a warning. Sardinia's casu martzu, a sheep cheese that contains live maggots, isn't a festival food. Italian authorities have banned its sale, and EU food rules agree, though it still circulates on the black market. You'll hear it offered quietly. You don't have to go looking for it, and 5 days in Cagliari has plenty of legal Sardinian food to try instead.
If you like food events with a less alarming menu, our post on cheese festivals in France is a gentler start, and beer in Serbia pairs with the championship. Browse the Serbia country page for the rest of the trip, or test your geography on the games page before you go.
