Literally "flower of salt," fleur de sel is a sea salt hand-harvested from tidal pools off the coast of Brittany, France. Paper-thin salt crystals are delicately drawn from the water's surface; much like cream is taken from milk, which can only be done on sunny, dry days with a slight breeze, and only with traditional wooden rakes. Since this salt is unrefined, it is not just sodium chloride. Other minerals, like calcium, and magnesium chloride, give it a more complex flavor. These chemicals make fleur de sel taste even saltier than salt, and give it what has been described as the flavor of the sea.