Private cooking course in Chiang Mai?

I'm looking for a private cooking course (not a single class) in English. I'd like to learn cooking from the ground up (I am an at best OK home cook). I want to learn techniques, approaches, recipes, etc.

Do you have any recommendations? The schools that offer classes are mostly aimed at single visits only and are not offering a longer term (e.g. 30 days) 1-1 program.

Thanks!