Use a knife to draw a hole in the chestnut. Note that you must make a wider stroke.
Put the chestnut in a pressure cooker and steam. When steaming chestnuts, do not let the chestnuts come into contact with water, separated by a steaming handle.
The fire is boiled, and after the pressure cooker is gas, it is cooked for another 8 or 9 minutes and then turned off. This way the chestnut can open automatically and is very pink.
The most critical step: immediately flush the pressure cooker with cold water after the fire is turned off, let the gas disappear immediately, and ensure that the pot is opened immediately, so that the steam on the lid does not drip onto the chestnut.
After the pot is put out, the golden, sweet and fragrant chestnut can be eaten!