When, my son turned two, I made this chocolate cake of mine for his Construction party. For this third birthday party, I made it again. That time, I went ahead and bought the icing from Whole Foods, who colored it to my liking with all natural food coloring and GMO free ingredients, and I thought that was good enough. It was still on the LESS-sweet side but the icing made up for it. You can add 1/4 cup sugar to this recipe to make it sweeter. As you can see for his third Superman party, I made this in a 9″ x 13″ pan, which this recipe easily converts to.