Sinigang

Sinigang is a Filipino soup or stew characterized by its sour and savoury taste most often associated with tamarind(Filipino: sampalok). It is one of the more popular viands in Filipino cuisine, and is related to the Malaysian dish singgang.

While present nationwide, sinigang is seen to be culturally Tagalog in origin, thus the versions found in the Visayas and Mindanao may differ in taste (mainly ginger is an additional ingredient). Fish sauce is a common condiment for the stew.

Source: https://en.wikipedia.org/wiki/Sinigang