Tempura Soba - Soba is a type of thin Japanese noodles made from buckwheat flour. It is served either chilled with a dipping sauce, or in hot broth as a noodle soup. In Japan, soba noodles are served in a variety of situations. They are a popular inexpensive fast food at train stations throughout Japan and are served by exclusive and expensive specialty restaurants. Markets sell dried noodles and men-tsuyu, or instant noodle broth, to make home preparation easy.