#2 in the Dim Sum series is Char Siu Bau 叉燒包, and please don't tell me I've romanized it incorrectly* because I don't want to know.
It's a fluffy white bun filled with BBQ pork (i.e. pork in a barbecue sauce) and, as you will see from the picture, you normally get three in a basket. It's a popular little Dim Sum and very widely available (I'd say it was ubiquitous if I knew how to spell it).
In my early Dim Sum days it was quite a favourite of mine, but now I find the bun a bit too, well, fluffy, and the BBQ sauce too sweet, so I'll eat it if it is offered, but I wouldn't order it and I wouldn't fight anyone for the last one.
*If you spell it Cha Xiu Bao (which is Pinyin, I think) it's also the name of a blog about food.