This is a pudding made from: Seaweed! The seaweed has no flavour, but does make an amazing thickener. Because of this, it is an excellent vegetarian custard. By using Soy Milk, it can also be turned into a brilliant vegan custard. Your guests will never know that they are having seaweed for dessert. Carrageen can be found or ordered in the U.S. through healthfood shops, where it is sometimes called carrageenan.