Walk into almost any workplace canteen, school cafeteria or traditional restaurant in Sweden on a Thursday, and you will likely see the same two words chalked on the board: ärtsoppa and pannkakor, pea soup and pancakes. For a visitor, the sheer consistency of it across the whole country is the first surprise. Here is what the tradition actually is, where the story behind it comes from, and how to enjoy it without any pork, egg or milk.
A weekly habit, not a one-off event
The Thursday meal has two parts. First comes a thick, bright yellow soup made from dried peas, traditionally simmered with a piece of pork and seasoned with mustard. It is followed by thin, crepe-style pancakes, usually rolled or folded and eaten with jam. According to news55.se, the combination is still served on Thursdays in schools and restaurants across the country, and Swedish workplace canteens and the armed forces have kept up the custom for conscripts for a long time. Menus vary from one kitchen to the next, so treat it as a strong regional pattern rather than a rule every single restaurant follows.
Where the story comes from (it depends who you ask)
Ask a Swede why Thursday specifically, and most will give you the same explanation: in Catholic times, meat was off the menu on Fridays, so people ate something substantial the day before to get through the fast. That is also the account given by Isof, the Institute for Language and Folklore, the government agency responsible for documenting Swedish food heritage, which states plainly that ”under den katolska tiden var fredag en köttfri dag” (during Catholic times, Friday was a meat-free day) and that the hearty Thursday meal grew out of that. The related Levande kulturarv heritage register, run jointly by Isof and the Nordic Museum, calls it ”probably” tied to the same Catholic fast, with peas and pork as a dish going back to medieval times.
That is the popular version, and it is worth treating as exactly that: the commonly repeated explanation, not a settled fact with a dated decree behind it. There is at least one documented, competing account. According to the Swedish-language entry on ärtsoppa, economic historian Mats Morell’s 1989 study of institutional food consumption traces the Thursday slot to something more mundane: the rotating, roughly two-week menus that Swedish hospitals and poorhouses used from the 1600s onward to plan their bulk food purchases, a pattern later carried over into military messes and, once school lunches became universal in the 1950s, into school cafeterias. On that reading, Thursday became the pea soup day less because of a fast the next day and more because a big, cheap, filling dish suited a fixed institutional rota, and the custom then spread outward from those kitchens. Both explanations point to the same medieval and early modern roots for the dish itself, but historians are not unanimous on why Thursday won out. Pancakes came along much later either way: Isof describes rounding off the soup with pancakes as ”ett senare tillägg i traditionen” (a later addition to the tradition), and other sources place the first record of the pairing toward the end of the 18th century, when thin pancakes were still a luxury only wealthier households could afford.
The traditional version is not vegan
Two ingredients make classic ärtsoppa och pannkakor unsuitable for a plant-based diet. The soup is usually simmered with a piece of pork, often a ham hock or side pork, which gives the broth its savoury depth. The pancakes are a separate problem: a standard Swedish pannkaka batter is built on wheat flour, eggs and dairy milk, and the meal is frequently finished with whipped cream on the side. None of that needs to stop you from having the Thursday classic, since every part of it has a straightforward plant-based version, but it does mean you cannot assume the dish on a traditional menu is safe to order without asking.
Making it vegan at home
Yellow split peas are already a plant, so a fully vegan pea soup mostly means swapping out the pork for something that still brings smokiness and body. ICA’s vegan pea soup with smoky mushroom does exactly that: dried yellow peas are soaked and simmered with onion, vegetable stock, thyme and marjoram until soft, then finished with a spoonful of Swedish mustard and a scoop of mushrooms fried with a touch of liquid smoke standing in for the pork. The mustard and the smoky mushroom together recreate the flavour most people expect from the traditional bowl.
For the pancakes, Wonder Vegan’s recipe replaces both the eggs and the dairy with plant milk (oat or soy work well) and vegan butter or margarine, both in the batter and in the pan. The batter is whisked together, left to rest for a few minutes so the flour hydrates properly, and then fried thin in a hot pan the same way as the dairy version. Roll them with jam, or, if you want the full traditional plate, keep a tub of oat-based whippable cream nearby for the topping.
What to check for if you order it out
Sitting down at a traditional restaurant on a Thursday is still a good way to experience the ritual, as long as you ask the right questions before the bowl arrives.
Ask what the soup is simmered with
The stock itself may carry pork even if you cannot see any meat in the bowl. Ask ”Är soppan gjord utan fläsk?” (is the soup made without pork) before you order.
Assume the pancakes have egg and milk
A standard pannkaka batter contains both. Ask for ”pannkakor utan ägg och mjölk” or whether a plant-based batter is available.
Watch the side of whipped cream
Vispgrädde is a common topping for the pancakes. Ask for it utan grädde (without cream) or request oat-based cream instead.
Punsch sometimes comes with it, and it is not a hidden animal product
A small glass of sweet Swedish punsch liqueur is sometimes served alongside the soup. No one has a documented explanation for why, but it contains no animal ingredients, so the only thing to know is that it is strong and sweet if a waiter brings one unasked.
If a kitchen cannot confirm the soup and pancakes are free of pork, egg and dairy, a fully plant-based version at a dedicated vegan or vegetarian restaurant is always the safer bet. The worldwide directory HappyCow is a good way to find one nearby, and our guide to eating plant-based at traditional restaurants covers the general phrases and habits that make ordering easier anywhere in Sweden.
Why it is worth trying
Ärtsoppa och pannkakor is one of the few Swedish food traditions that is genuinely tied to a specific day rather than a season or a holiday, which makes it an easy, low-stakes way to feel part of local life during a visit. Cooked at home with yellow split peas, plant milk and vegan butter, it is also one of the more affordable and filling meals you can make for yourself while travelling. Pair it with our Swedish vegan glossary before you go looking for it on a menu, or explore vegan Stockholm and vegan Gothenburg for more city-specific guides.