The fine flavor combination of sake (rice liquor) and goma (sesame seeds) gives a real flair to the tender chicken meat. For the sauce used ground, toasted sesame seeds or the Middle Eastern tahini paste. You can also use peanut butter, although this ingredient is not quite as authentic.
This particular recipe is from Sumbawa. Sumbawa is an Indonesian island, in the middle of the Lesser Sunda Islands chain, with Lombok to the west, Flores to the east, and Sumba further to the southeast. It is part of the province of West Nusa Tenggara, but there are presently steps being taken by the Indonesian government to turn the island into a separate province. Traditionally the island is known as the source of sappanwood used to make red dye, as well as honey and sandalwood. Its savanna-like climate and the vast grassland is used to breed horses and cattle.