At Potong, a Thai Chinese fine-dining spot hidden in Bangkok’s labyrinthine Chinatown, every guest will find a letter to chef-owner Pichaya Soontornyanakij’s grandparents beside their plate.

The top spot was taken by restaurant Potong, the Thai-Chinese fine dining restaurant by chef Pichaya 'Pam' Soontornyanakij, followed closely by Côte By Mauro Colagreco at Capella Bangkok ...