Gravlax (gravad lax) or gravlaks is a Nordic dish consisting of raw salmon, cured in salt, sugar, and dill.Gravlax is usually served as an appetizer, sliced thinly and accompanied by hovmästarsås (literally "maitre d'hôtel sauce", also known in Sweden as gravlaxsås and in Denmark as rævesovs, literally "fox sauce"), a dill and mustard sauce, either on bread or with boiled potatoes.