Black sesame roll is a refrigerated dim sum

Dim sum

Dim sum refers to a style of Chinese food prepared as small bite-sized or individual portions of food traditionally served in small steamer baskets or on small plates...

 dessert found in Hong Kong

Hong Kong

Hong Kong is one of two Special Administrative Regions of the People's Republic of China , the other being Macau. A city-state situated on China's south coast and enclosed by the Pearl River Delta and South China Sea, it is renowned for its expansive skyline and deep natural harbour...

 and some overseas Chinatowns. It is sweet and the texture is smooth and soft.

Preparation

The dessert begins with a thin layer of black sesame

Sesame

Sesame is a flowering plant in the genus Sesamum. Numerous wild relatives occur in Africa and a smaller number in India. It is widely naturalized in tropical regions around the world and is cultivated for its edible seeds, which grow in pods....

paste waiting to dry. The paste eventually forms a thin sheet, and is refrigerated. The sheets are then individually rolled up into a sesame roll.