Gravad lax or Gravlax) is a Scandinavian dish of salmon pickled with salt, sugar and dill, it may be served think or thickly sliced, usually with a slightly sweetened sauce of mustard and dill on rye or crispy crust bread
Gravlax also refers to cured salmon; sliced and cured salmon in dill and spices. It is usually served with Gravlaxsas, a dill and sweet mustard sauce.
Please see Gravlaxsas.
Picture below in Gravlax which was served to us during one of our brunch in Germany.