| S.O.S. | |
| Country: | Sweden |
| Course: | Hors d'oeuvre |
| Main Ingredient: | Herring, butter, cheese |
S.O.S. is a traditional Swedish appetizer. It stands for "smör, ost och sill", which describes its main ingredients: butter, cheese and herring.[1] It is usually eaten with snaps Akvavit. The name parodies the morse code signal SOS, commonly used to indicate emergencies or distress.