Magically making its own fudge sauce this cake will become one of your favorite last-minute desserts. Serve it with ice cream for an extra special treat. Note: if you use a dutch process cocoa you will have a richer, darker result. TIP: some reviewers have recommended "baking" this in a crockpot on High for about 2 1/2 hours and then letting it cool slightly before serving. Thanks for the tip!