Russian Boiled Fish

Clean and season a whole fish and let boil with 1 sliced onion, 1/2
cup of vinegar, a few slices of lemon and 2 sprigs of parsley. Add a
tablespoonful of butter and let cook until tender. Remove the fish to
a platter; mix the sauce with 1 tablespoonful of brown sugar, a pinch
of ginger, cinnamon and nutmeg and the juice of a lemon. Let boil
well; then thicken with the yolks of 2 beaten eggs and pour over the
fish. Serve cold. Garnish with lemon-slices and olives.