It is also a good choice to buy some related books or look at recipes from other stores.
I remember a set of books teaching cooking, which was published by Shantou University Press. A lot of it is about this. Go and have a look if you can. There are steamed stuffed buns, sauces, tea fruits, refreshing drinks, and most importantly, a book about light food in cafes.
Although I don't have the book in the cafe at hand, there are some ways to make western cakes such as jam chocolate, sandwich biscuits, thousand-layer cakes and Swiss rolls. If you need it, you can tell me and send it to you right away.
I answered these questions at random, and there should be no "credibility", but I didn't copy them. If the landlord agrees with me, please choose me as the best answer.