In Cantonese the loanword for chocolate is 朱古力, pronounced jyū gū līk, and in Mandarin it's 巧克力, pronounced qiǎo kè lì. 小 is small, 籠 is envelope, and 包 is bun, so 小籠包 is small envelope bun.
About This Dish
One of the more whimsical variations of Shanghai soup dumplings (available at Din Tai Fung and, in Las Vegas, Xiaolongbao), this is a soup dumpling skin filled with chocolate (in this photo, also with banana). No soup. For dessert.