Sesame balls, also known as jian dui, are a popular sweet dim sum treat. These deep-fried balls are made from glutinous rice flour and filled with a sweet filling, often made from red bean paste or lotus seed paste. The balls are then rolled in sesame seeds and deep-fried until golden and crispy. The result is a crunchy exterior with a soft and chewy interior, filled with a sweet and fragrant filling. Sesame balls are often served as a dessert at dim sum restaurants, and they are best enjoyed when they are still warm. They are a delightful treat for those with a sweet tooth.