I made up a recipe for this vegetable I discovered at the supermarket this week. Laura recommended blanching.
Trim and wash
Blanch about 5 minutes in boiling water, drain
Heat walnut oil, add gai lan, stir fry about 5 minutes
Add crushed chili pepper, salt and sesame seeds to taste
I’ve found a couple of on-line sources for seeds and look forward to trying to grow gai lan next year. I hear it does well in the cooler spring and fall weather.