Sweet kombu (Laminaria saccharina), also called sugar kelp, is found on rocky coastlines of cool, temperate zones across Europe from the North Atlantic coast to the Baltic Sea and the western Mediterranean as well as in Asia and America. The green-brown seaweed reaches up to 3m in length and thrives on the shoreline and in shallow waters at depths of up to 20,. It is predominantly found growing on rocks and mussel shells.
The algae's name hints at its slightly sweet flavour. Used for seasoning, but also as a garnish, sweet kombu is highly valued for its unique flavour and nutritional properties and is used in many different ways in kitchens all over the world.