Jian dui

Jiandui or sesame balls are a type of fried Chinese pastry made from glutinous rice flour. The pastry is coated with sesame seeds on the outside and is crisp and chewy after immediately being cooked. Inside the pastry is a large hollow, caused by the expansion of the dough. The hollow of the pastry is filled with a filling usually consisting of lotus paste, or alternatively, sweet black bean paste, or red bean paste. Depending on the region and cultural area, jiandui are known as matuan in North and Northwest China, mayuan (麻圆) in Northeast China, and zhendai (珍袋) in Hainan.[citation needed] The origins of jian dui can be traced back to the Tang dynasty as a royal food in Chang'an, known as lüdui (碌䭔). This food item was also recalled in a poem by the Tang poet Wang Fanzhi. With the southward migration of many peoples from central China since the An–Shi Rebellion, the jian dui was brought along and hence became part of southern Chinese cuisine.

Source: Wikipedia