What do people think of these, are they the next London 'food trend'? I was at Fresh and Buns (review available on my blog) a couple of weeks ago which seems to be quite a big opening.
Has anyone been to Yum Bun or one of the street food places that do them? How do you think the ones in London compare with the Momofuku ones if you have had them?
I would be keen to know your thoughts.