Stir-fried chestnuts in pressure cooker

Overview

I like to eat chestnuts, so I learned how to fry chestnuts in a pressure cooker with my grandma, and I would like to share it with everyone

Wash 800g chestnuts and put them in a pressure cooker
Cover the pot and remove the valve. Stir-fry over medium heat, stir while stir-frying, pick up the pot and shake it to make the chestnuts heat evenly (hold the pot with both hands while wrapping the other side of the pot with a wet towel and bump it back and forth) for about 20 seconds and shake it four or five times
Stir-fry for about fifteen minutes and you'll be done with it. Open the lid and take out one to test if it's done