George Leonard Herter, author of the legendary 'Bull Cookbook,' attributes this recipe to King Oscar II of Norway and Sweden (1829-1907) and states that it was brought to Minnesota by Scandinavian immigrants. He also claims that it is "far better in taste than Bouillabaisse Marseillaise." I will not comment on George's culinary judgments or his historical work. I have corrected a couple of obvious errors in his recipe, but I would not dream of leaving out the surprise ingredient that is supposed to be added at serving time. Whether King Oscar thought of it or not, it's a nice touch.