fleur de sel means: French “flowers of salt” This rare salt is hand-harvested in Brittany (France) and only available in small quantities. It is made up of natural crystals that are found in salt marshes. These crystals can only be sun-dried, which preserves many nutrients that are not present in prepared salts. Fleur de Sel is a natural condiment that can be used to add texture and flavor to any meal. (in Cooking Dictionary)