Three outlets with the same name in the same street run by the same family can be a tad confusing! Make a beeline for number 6B; a century-old, pale yellow painted townhouse reached through a small courtyard. The highlight is Cha Ca - grilled catfish with turmeric, cooked at the table in a sizzling saucepan with spring onions and dill, and deliciously paired with vermicelli noodles, coriander, shrimp paste and peanuts for an intriguing combination of textures.