Wojingtan hard cake from Changtu Island

Wojingtan hard cake has a hard, crispy exterior. [Photo/WeChat account: zsqdly]

As its name suggests, Wojingtan hard cake has a hard texture, but this what makes it crispy. There are usually more than 10 procedures required to make the hard cake, including stir-frying ingredients, grinding, steaming, baking, drying, and packaging.

This snack is sometimes referred to as "edible stones".