Watch Online HD on HDtoday. Clarissa Dickson Wright tracks down Britain's oldest known cookbook, The Forme of Cury. This 700-year-old scroll was written during the reign of King Richard II from recipes created by the king's master chefs. How did this ancient manuscript influence the way people eat today? On her culinary journey through medieval history she reawakens recipes that have lain dormant for centuries and discovers dishes that are still prepared now.