Pork Sinigang or Sinigang na Baboy is one of the Filipino favorite dish. This simple Pork Sinigang dish features pork neck bones buto-buto ng baboy simmered and seasoned with tamarind soup base using basic vegetables. One of the secret of a delicious Pork Sinigang. Sinigang is a Filipino sour soup or stew made from meat or seafoods, vegetables, and tamarind. Traditionally, tamarind is used to make the soup sour, but we can also use other ingredients like ripe guava, calamansi, kamias, and green mango. I usually use buto-buto and liempo for my sinigang. Let's make some sinigang today.