Oh I love these so much, 15.5 syns a box... unless you give a few to someone else to get it down to 15 lol. I used to have similar ones as a child that my Grandma used to get in Spain. Mmmmmmmm!! It's so randomthat they sell these in my local corner shop yum.xx
I did a bit of googling and found a company called Ommnom that sells them on eBay. Also a few other places you can get them by mail order. The problem is that it would not make sense to order just one packet - and if I ordered a lot I would eat the lot! No willpower, me.
I will have to see if I can find an oriental shop in Reading.