The dish known today as bouillabaisse was created by Marseille fishermen who wanted to make a meal when they returned to port. Rather than using the more expensive fish, they cooked the common rockfish and shellfish that they pulled up with their nets and lines, usually fish that were too bony to serve in restaurants, cooking them in a cauldron of sea water on a wood fire and seasoning them with garlic and fennel. Tomatoes were added to the recipe in the 17th century, after their introduction from America. This zesty version is courtesy of Chef Jamie Shannon of Commander's Palace in New Orleans, as featured in the Louisiana New Garde television show. The broth can be made up to two days ahead, covered and stored in the refrigerator.