Wash potatoes, cook, peel and cut into 1 cm sized cubes.
Chop herrings and pickles likewise into approx. 1 cm large cubes. Peel
apples and remove core and seeds, dice. Peel onion, chop finely. Mix
potatoes, pickles, herrings, apple cubes, onion and beans.
Mix sour cream into mayonnaise, add vinegar, salt, pepper, horseradish,
anchovy paste and capers to make a savoury marinade. Let the salad rest,
season to taste again with vinegar or lemon juice, salt and pepper.
Decorate with hard boiled egg-quarters, possibly a bit of parsley, a few
finely chopped capers and pickles cut into a fan shape before serving.