This kind of pastry can be bought in traditional pastry shops, specialty shops, pedestrian streets and food streets in Hangzhou.

1. Traditional pastry shops: There are many traditional pastry shops in Hangzhou, such as Laohangbang and Ji Hu in the Southern Song Dynasty. The cakes sold in these shops are authentic and have the characteristics of Hangzhou.

2. Specialty stores: major supermarkets in Hangzhou, such as Century Lianhua, Carrefour and CR Vanguard. There are special pastry counters in Hangzhou, which are convenient for tourists to buy.

3. Pedestrian Street and Food Street: There are many shops selling specialty cakes in Hefang Street and Hubin Pedestrian Street, where you can not only taste authentic Hangzhou cakes, but also appreciate local folk customs.