A heated food base which is formed by heating a batter which is obtained by kneading wheat flour, an oil or fat, sugar, an edible surfactant such as egg, and water and which is poured onto a heating plate and spread thereon, the heating being performed between heated platens at a certain temperature...http://www.google.es/patents/US4927656?utm_source=gb-gplus-sharePatente US4927656 - Method of producing edible vessel