Yi bua (chinese: 薏粑; pinyin: yìbā, also spelt yi buak, yi buah, or yibua) is a traditional hainanese kuih. it is a hainanese steamed dumpling made of glutinous rice flour dough. also known as kuih e-oua, it is filled with a palm sugar sweetened mixture of grated coconut, toasted sesame seeds and crushed roasted peanuts, wrapped with sheets of banana leaves pressed into a fluted cup shape, and customarily marked with a dab of red food colouring. this kuih is traditionally served during a wedding and a baby's full-moon celebration.

Source: Wikipedia