This recipe is from 1952 and was found on Spise Med Mormor
1/2 kg fresh herring
Flour
Salt
Pepper
Egg whites
Breadcrumbs
Margarine
1 portion of mashed potatoes
Lingonberry jam
Clean the herrings, remove the bones and season them with salt and pepper. Dredge the herring in flour, then dip in beaten egg whites, then cover with breadcrumbs. Fry until golden, cooked through, and crisp in liberal amounts of margarine. Serve with mashed potatoes and lingonberry jam.