My 2nd completed scene in Blender and my 1rst attempt with the Cycles renderer, the fluid simulator (for the frosting) and the particle/hair system (for the sprinkles). I followed Andrew Price's tutorial (http://www.blenderguru.com/videos/introduction-to-cycles), but because I was unfamiliar with what I mentioned above, this project took me a lot longer than I thought it would. No post-processing done.