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, such as red bean paste or lotus seed paste. The balls are then rolled in sesame seeds and deep-fried until golden brown and crispy. The result is a crunchy exterior with a soft and chewy interior, filled with a sweet and flavorful filling. Sesame balls are often enjoyed as a dessert or as a snack, and they are a favorite among those with a sweet tooth.