You can call it Qianhua Bun or Qianhua Gongdeng Bun, Fine Sand Qianhua Bun, Red Bean Paste Qianhua Bun, Milk Custard Qianhua Bun. Whatever name is given by people.
Just like Three Meat Buns can be Three Meat Buns, Premium Three Filling Buns, or Special Grade Three Filling Buns.
Dried Tangerine Peel, White Fungus, and Lotus Seed Soup can also be White Fungus Soup, Lotus Seed Soup, or Dried Tangerine Peel Tea.
From Qin Huai's understanding of Zheng Da, Zheng Da actually doesn't really like snacks with rolled shapes.
When he makes snacks, if he can avoid styling them, he would. The difficulty of Qianhua Bun is not as high as dumplings, so it's worth learning, and Qin Huai is genuinely a bit worried that Zheng Da might not really be able to make Qianhua Gongdeng Bun.