The world has been watching the Royal wedding of Prince William and Kate Middleton. As people were discussing the guest list, the dresses, and the beautiful hats, I was looking for recipes from the wedding menu! It has been revealed that the Groom's Cake was the simple Chocolate Biscuit Cake, which is Prince William's favorite. Today, I am going to show you how to make it based on a recipe from the book 'Eating Royally' authored by Darren McGrady, who used to be the private chef of Lady Diana. They also mentioned that for the wedding, there were secret ingredients that have been added to the cake. I am inviting you to add your own secret ingredients (e.g. orange peels, nuts, flavoring, etc.) to this recipe, so you can make your own Royal Chocolate Biscuit Cake!