Marinated pork knuckle (佛山燻蹄) at Peninsula, Holiday Inn Express, North Greenwich, London SE10
I actually couldn't decide whether that was shredded jellyfish or shredded pork skin on the side. It tasted vaguely porky, but all other reviews claim it's jellyfish.
Links (see the RGL link for additional review links):
Taken on August 3, 2010