Wash the chestnuts, put them in a pressure cooker, and add enough water to cover them.
Heat the pressure cooker until it comes up to pressure. Lower the heat and cook under pressure for 5 minutes. Leave the cooker to cool and de-pressurize naturally.
Drain the chestnuts into a colander, and peel them using a knife. Be careful not to cut yourself!
Eat as-is. Or put them in simmered dishes, stir fries and so on. Add them at the very end.
Story Behind this Recipe
When I'm short on time, I boil chestnuts in a pressure cooker.
If you are going to cook the chestnuts further, as in chestnuts in sugar syrup, chestnuts in syrup in their inner skins, or chestnut rice, you don't have to cook them all the way through when parboiling them. You just need to cook them under pressure for 1 minute and cool the pressure cooker down rapidly!