Yun Dou Juan (Chinese: 芸豆卷; pinyin: yúndòujuǎn; lit.
'kidney bean rolls') is a traditional dish of Beijing cuisine.
The kidney beans would then be crushed and compressed into linear mash/paste form with diameter of 3.5 cm.
The mash/paste would then be placed on a piece of wet cloth and formed into rectangular shape with knife, and a layer of bean paste is placed on top of the rectangular shaped kidney bean mash/paste, and rolled together.
When serving, the resulting roll would be cut into smaller pieces.