Lightly salted Baltic herring fermented in barrels for two months, sold in swollen tins. Served on tunnbröd flatbread with potato and onion. The strongest-smelling food in commerce.
Where to eat it: 5 restaurants across 1 city.
Surströmming traces to medieval Baltic fishermen who used minimum salt (rare and expensive in the north) to preserve herring; the result fermented. The trade codified in the 16th century. By royal decree, the year's surströmming can be released no earlier than the third Thursday of August (Surströmmingspremiär). The traditional surströmmingsskiva is eaten outdoors with new potatoes, raw onion, sour cream, tunnbröd and snaps. Pelikan, Tennstopet and Kvarnen all run sittings in late August.
Common allergens: Fish, Dairy
Tip from the editors. Open the tin outdoors or underwater. The smell takes days to leave a kitchen; never open one indoors as a joke. The new potatoes balance the salt and ferment.
Pelikan on Blekingegatan in Stockholm's Södermalm has cooked husmanskost in the vaulted 1904 hall since the Pelikan name moved from Gamla Stan, meatballs.
Signature: Meatballs with cream sauce and lingonberry, Sillbord pickled herring board
Order: The meatball plate with mash, brown sauce, lingonberry and pickled cucumber.
Tip: The smaller dining room is calmer than the big hall. Skip the queue by booking the bar counter online.
Tennstopet: 1907 journalist's pub on Dalagatan; tourists head to Pelikan but locals know this bar runs later on weeknights with the same husmanskost.
Why locals love it: 1907 journalist's pub on Dalagatan; tourists head to Pelikan but locals know this bar runs later on weeknights with the same husmanskost.
Tip: Open seven days; kitchen until 23:00. Bar until 02:00 on Friday and Saturday.
Kvarnen is on tjärhovsgatan in södermalm since 1908; oak-paneled hall the tour buses miss because the stieg larsson tie keeps it on the locals' track.
Why locals love it: On Tjärhovsgatan in Södermalm since 1908; oak-paneled hall the tour buses miss because the Stieg Larsson tie keeps it on the locals' track.
Tip: Walk through to the back room: the Czech beer hall pours small-brewery picks until 03:00 on Friday and Saturday.
Tradition on Österlånggatan in Stockholm's Gamla Stan is a tight Old Town room cooking the Swedish home-canon: pyttipanna, kåldolmar, raggmunk and Toast.
Signature: Pyttipanna Swedish hash, Toast Skagen with bleak roe
Order: Pyttipanna with pickled beetroot and fried egg; the Thursday ärtsoppa with pancakes is the rule.
Tip: Closed Sunday. Lunch is the better sitting; the kitchen runs the dagens lunch sub-150 kronor.
Den Gyldene Freden on Österlånggatan in Stockholm's Gamla Stan opened in 1722 and remains the oldest restaurant in continuous operation under the same name.
Signature: Wallenbergare veal patty with mash, Janssons frestelse anchovy potato
Order: Wallenbergare with pea purée, lingonberry and brown butter potatoes.
Tip: Closed Sunday and Monday. The vaulted cellar is the heritage room; the upstairs table runs quieter.
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