This is a fish version of the Swedish falukorv. Use the search function to find the traditional pork version! These fish sausages are delicious both warm and cold with a yummy mustard dip and croutons.
Sweden have numerous variations of pickled herring. Many recipes are mayonnaise or crème fraiche based such as this recipe. The herring pickle in this recipe has some of the traditional anchovy spices.
These filled egg halves could be served on a buffet or as a plated dish. The bleak roe is a Swedish delicacy but you can choose any fish roe you like.