The Japanese chap in our team made us try this. http://en.wikipedia.org/wiki/Y%C5%8Dkan
As far as I can work out it was some sort of sweet bean paste desert.
Taste = Sweet custard
Texture = mushy peas.
Verdict = Yummy... Will I try it again? Hell no!
I twas better than the Lobster and Escallop sausage that I had last night with Shaheen, Kate and April in roast Borough Market. Shaheen ordered the same as me and it wasn't great. Taste was nice enough. Texture was a sloppy mess. Mmm. Not the best £30 I ever spent.