What is the authentic Youth League made of?

Youth League is a traditional snack in the south of the Yangtze River. It is blue, mixed with the juice of wormwood into glutinous rice flour, and then wrapped with bean paste or lotus paste. It is not sweet or greasy, and has a faint but long grass fragrance.

Practice, such as:

First, put tender wormwood and hemp grass into a cauldron, add lime, steam them, remove lime water, knead them into glutinous rice flour, and make them into green dough. Pick out dough weighing about 75g each, knead them into long strips, flatten them one by one, wrap them with fillings such as bean paste, knead them together, and knead them into a ball, that is, make them into green dough. Spread a wet cloth in the cage, put the green balls into the pot, steam for about 15-20 minutes until cooked, and then rub some sesame oil on the green balls.