Combine sugar, potatoes, shortening, cinnamon, ... at 350 degrees for 45 to 50 minutes. Top with icing. ICING: Melt butter in ... thick enough to spread.
Set the oven to moderate, ... powder and mixed spice together and fold into the cake mixture. Mix the potato into ... the pre-heated oven for 1 to 1 1/2 hours, ... ounce of the icing sugar with the cocoa powder. ... chocolate cake really moist.