Kanten is a japanese dessert that is somewhat likened to Jell-O. It is made with agar-agar, a gelatinous substance that comes from several species of dried seaweeds. It also has some health benefits, such as regulating the digestive system and aid in weight control. It is tasteless and comes in several forms such as bars, flakes and powders.
Agar-Agar is readily available at most health food stores in the asian section.
Most of all, it's delicious and taste great!