answered about 16 months ago by sandyg
Have a look on the internet for a company called Hidden Hanoi - they are located near the Sheraton Hotel.
The restaurant group called Highway 4 also offer this service
I believe the sofitel and/or metropole hotels also do classes - Hanoi International Womens Club organises lessons for it's members.
I'm sure there are others but these are the ones I have heard good things about.
It will be worth checking the UNIS community education courses when they start up again as they have offered cookery classes in the past.
Hope this helps