khao nieow dtut" which means sticky rice slices.
Arriving in the computer room one of my teachers there asked what I had. I showed her and she said "oh, it is khao nieow naa nuan"! I said no, it is "khao nieow dtut". She insisted it wasn't. I then asked five different Thai people and ended up with them splitting into two different camps. It would now seem that this dessert is known by two different names though "khao nieow dtut" seems to be more popular!