This is one of my more experimental pies. It's two tones come from one layer of classic sweet potato atop another layer of chocolate sweet potato (chocolate sweet potatoes are finally in season... tee hee). It turned out to have an unusual yet extremely complex and delicious flavor. I am trying to come up with something very creative for the pie contest and this one might be in the running. But I'm having trouble coming up with a good name. Any ideas?