1. Preheat oven to 350 degrees. Grease a 11x17 jelly roll pan (or a 9x13 pan but you may have sugar shock)
2. Combine butter, shortening, chocolate, and water in a small saucepan. Heat until chocolate is melted.
3. In a separate small bowl, combine flour and baking soda. Set aside.
4. In a large mixing bowl, combine sugar, buttermilk, eggs, cinnamon, and vanilla. Combine with chocolated mixture. Add flour mixture and mix very well. Pour into pan and bake 20-25 minutes or until prick comes out clean. Five minutes before cake is done, make frosting.
Frosting:
Combine milk, chocolate, and butter in a large (or med large) saucepan. Heat until bubbles form around the edge. Remove from heat and add powdered sugar and vanilla, beat until smooth. If desired, add 1 cup of nuts. While icing is still warm, pour over the cake. |