If you think tiramisu, the ever-popular Italian restaurant dessert, is too difficult to make at home, you're in for a welcome surprise. This recipe can be finished in just 45 minutes, and besides beating egg whites into stiff peaks with a mixer, everything can be done by hand, and without any particular cooking skils. Rather, it's a matter of assembling the various components and allowing the flavors and textures to meld before serving, to an appreciative audience.