Kuay tio pak mor in chicken feet soup in Panom Sarakham district of Chachoengsao. This type of beef satay haab no longer exists. It began with an ordinary haab selling curry with rice in front of the Opera House in Chinatown from 8pm until midnight. The first example is kuay tio pak mor (dumplings with soup), originated in Panom Sarakham district, Chachoengsao. Sitting and eating in front of the hawkers haab is good in many ways.
Source: Bangkok Post March 29, 2020 00:22 UTC