Moo yor

Chả lụa or giò lụa ( Hanoi: [zɔ̂ lûˀə]) is the most common type of sausage in Vietnamese cuisine, made of pork and traditionally wrapped in banana leaves. Traditionally, chả lụa is made of lean pork, potato starch, garlic, ground black pepper, and fish sauce. The pork has to be pounded into a paste; it cannot be chopped or ground, as the meat would still be fibrous, dry, and crumbly. Near the end of the pounding period, a few spoonfuls of fish paste are added to the meat for flavor. Salt, black pepper, and sugar can also be added. The meat is now called giò sống, meaning "raw sausage", and can also be used in other dishes than sausages. The mixture is then wrapped tightly in banana leaves into a cylindrical shape and boiled. If the banana leaf is not wrapped tightly and water leaks inside while it is being boiled, the sausage will spoil quickly if kept at room temperature. The sausage has to be submerged vertically into boiling water; a 1 kg sausage typically takes an hour to cook.

Source: Wikipedia