Som tum (pronounced 'som tam') is one of the pillars of Thai food and is usually found in anonymous street shops and basic carts. But things are changing: a new generation of Thai chefs takes great pride in bringing this excellent dish to a brand-new level and Somtum Der is a good example of this. Located on Soi Sala Daeng in Silom not far from Patpong, Somtum Der is a small but attractive-looking two-storey restaurant serving great som tum that doesn't compromise on the original taste.