Ok, here's the situation. I put a pan of water and sugar on a medium high flame and went away. Some time later I found a smoldering black mass overflowing the pan. It took some time to clean up (anybody know how to remove burnt caramel from stainless steel?).
I threw the burnt caramel away, but later started wondering. There is a sweet called 'carbon' and I have no idea how it's made, but it looks the same as what was in the pan... So there's the question. How is 'carbon' made?
Edit The question was whether the burnt sugar is edible. The answer of course is: no.