Rousong or yuk sung or bak hu (pronounced [ɻôʊsʊ́ŋ]; chinese: 肉鬆; cantonese yale: yuk6 sung1), also known as meat floss, is a dried meat product with a light and fluffy texture similar to coarse cotton, originating from china. rousong is used as a topping for many foods, such as congee, tofu, rice, and savory soy milk. it is also used as filling for various savory buns and pastries as well as a topping for baked goods filled with bean paste, for example, and as a snack food on its own. rousong is a very popular food item in chinese, vietnamese (called ruốc in the north and chà bông in the south) and indonesian dining.

Source: Wikipedia