Sarawak, much of the ethnic Iban population is still concentrated away from Sarawak's main urban areas, congregating instead within longhouse communities scattered all over the interior regions of the state. The traditional cookery of the Iban is called pansoh or pansuh, which is the preparation and cooking of food in bamboo tubes. Ingredients like poultry, fish, pork, vegetables or rice are mixed with fragrant herbs like lemongrass, tapioca leaves and bungkang leaves (a species of myrtle from the Eugenia genus), then sealed within the bamboo tubes and placed directly over an open fire. Cooking food this way will infuse it with aroma and flavour from the bamboo tubes while keeping it moist. During Dayak festivals or Gawai, the Iban would slaughter locally reared pigs. The pig would be cleaned thoroughly after the slaughter, have its head and stomach removed, and the rest of the pig would be cut into smaller pieces in preparation for barbecuing. The head and stomach of a pig are usually put aside and prepared separately as they are considered the choicest parts of the animal; hence pig's heads are a common edible gift brought by visitors to an Iban longhouse, and dishes such as pork stomach cooked with pineapples are a must for Gawai. Sarawak is notable for its rice; currently three varieties grown in Sarawak has been granted GI status by MyIPO. Among the foods and beverages particular to Sarawak are: Belacan bihun is rice vermicelli dressed in a gravy made from ground chillies, belacan, tamarind, and dried shrimp. It is garnished with cured cuttlefish, julienned cucumber, bean sprouts and century egg wedges. Bubur pedas is a type of rice congee cooked with a specially prepared spice paste, or rempah made from turmeric, lemon grass, galangal, chillies, ginger, coconut and shallots. A fairly complex and spicy dish compared to most typical congee preparations, Bubur Pedas is often prepared during the month of Ramadan and served during the breaking of fast. Daun ubi tumbuk or pucuk ubi tumbuk is a preparation of cassava leaves (known as empasak by the Iban) which has the consistency of pesto, and is widely eaten among Sarawak's native communities. The pounded leaves may be sauteed with seasonings like anchovies and chilli, stuffed into a bamboo tube and roasted over an open fire, or simply boiled with shallot, fat and salt. Ikan terubuk masin is salt-preserved toli shad, which is endemic to