Charcoal
Currently have Oz guests who, as they do, pronounced themselves olympic champions in the art of the barbeque. The ensueing (heated?) debate revealed that they really meant cooking outdoors on a gas - heated metal plate. In true olympian spirit we brought on the trusty black orb - properly barbequed leg of lamb. Another medal for team GB.
(Possibly not for the purist, but the Weber "aluminum tube" fire starting device is a marvel, and deemed to be within IOC rules hereabouts)