***Bake them (like a potato) for an hour - Absolutely NO gas! The inulin they contain gets completely removed. I have been growing Jerusalem artickokes for a couple years now and they are amazing! I had eaten them for a year before I looked them up and found out they cause flatulence. I never noticed. So I looked up further. it's the cooking of them slowely that is the ticket and that's the only way I've ever eaten them.
I live in northern Alberta, Canada and the JA's survive -40F winters in the ground! I can dig them up all winter (as long as I have enough compost/straw around them to dig in the solid frozen ground. Hooray for hardy things!
Everything is great in the end, if it's not great, it's not the END! (And even the end of many things will not be the END)