Sinigang na baboy (pork) is a Filipino soup which has a distinctive sour taste which comes from the unripe tamarind, ripe guava and more ingredients. Since the Tamarind is the ingredient, most used in the Philippines it can be found in supermarkets packed in small sachets. Sinigang is a soup that can be cooked with many different vegetables and meat. It’s common to make sinigang with pork or beef but also chicken, fish or shrimp are being used.