Köttbullekällaren’s offer, as described by Visit Sweden, centres on meatballs, a dish the entry calls one of Sweden’s most beloved. The restaurant was founded in 1875 with an explicit aim: to preserve Gothenburg’s food culture and traditions by serving them. Its recipe has been kept secret for more than 145 years, the entry says, and it describes that recipe as a legacy carried into every serving.

The account ties the restaurant’s history to the dish rather than to a broader menu or a change in concept. It says the meatballs are known for their classic character, flavour and generous portions, and credits long-standing craftsmanship and care. For a visitor, the defining experience is therefore a serving of meatballs linked to a recipe whose details remain secret. The description gives the restaurant’s founding year and the purpose behind its menu, while its defining food remains the same dish: meatballs. The same secret recipe is described as living on in every serving.