Icelandic halibut soup is a traditional Icelandic fish soup that is commonly eaten for dinner and sometimes lunch. The soup contains halibut steaks simmered in water with bay leaves and salt before thickening the broth with butter and flour. Prunes are added to the thickened broth and the soup is finished with lemon juice and sugar. While it is an old dish, Icelandic halibut soup remains popular in Iceland and is served in many restaurants throughout the country.