This cake has a simple elegance to it, but it comes together quickly and only bakes for 30 minutes or so. And you don't have to mess with any frosting. It's rich and delicious on its own. I like to serve it on a wooden cutting board and dust it with powdered sugar. If you want to gild the lily, you can serve slices with fruit and/or whipped cream spiked with cinnamon, but it's such a great cake that it doesn't really need any additional bells and whistles.