The Co Tu (or Ca Tu, Ca Tang; người Cơ Tu) are an ethnic group in Vietnam. Most Co Tu live in the provinces of Thừa Thiên -Huế and Quảng Nam. The population in Vietnam was 50,458 in the 1999 census and 61,588 in the 2009 census. They speak a language in the Mon–Khmer language family. The Co Tu typically serve rice cooked in bamboo ste...