Diana's Guinness® Chocolate Cake with Guinness Chocolate Icing
'The best chocolate cake I've ever had!' You'll hear comments like this and more when you serve this ultra dark, rich chocolate cake with its luscious chocolate icing. This recipe is adapted from one created by Diana, the talented editor of Allrecipes' UK site. Use a chocolate bar with 74 percent cacao (not baking chocolate) to intensify the chocolate flavor, and don't wait until St. Paddy's Day to make it!