Wikipedia
Curtido
Curtido is a type of lightly fermented cabbage relish. It is typical in Salvadoran cuisine and that of other Central American countries, and is usually made with cabbage, onions, carrots, oregano, and sometimes lime juice; it resembles sauerkraut, kimchi, or tart cole slaw. It is commonly served alongside pupusas, the national delicacy.
thumb|right|Curtido in this example, is made with onions, chillies and carrots. This is in a pupuserÃa in Olocuilta, El Salvador