There’s a new, very different addition to the Opus Building on Thong Lor, where the recent opening of Bangkok Burger Company is generating a lot of buzz. Bianco Nero (Opus, Thong Lor Soi 10, 02-714-9368) is all about chocolate: white, milk, dark and very dark. Importing their chocolate from Belgium and France, they are offering, in addition to simple choc treats like chocolate-based coffee drinks, cocktails and pastries. The décor, too, is pretty literal with chocolate slab walls and chocolate stalactites on the ceiling.