Chinese sweet tea
Chinese sweet tea, also known as Tian-cha (Chinese: 甜茶; pinyin: tiánchá; Jyutping: tin4 caa4), is a traditional Chinese herbal tea, made from the leaves of Chinese blackberry (Rubus suavissimus). These leaves contain a natural sweetener, called rubusoside, which is 200 times as sweet as cane sugar.