Blaine Clark wrote: I've boiled them and flowers to get broth for wine making and the boiled leaves lose the fuzziness plus they taste a lot like squash with the flowers. Add a bit of butter and you're good to chow down. I've got two varieties and one has leaves nearly three times the size of my hands, suitable for wrapping just like grape leaves for Mediterranean style or corn husks for Mexican style. They soften up when cooked though, really soft!
Blaine Clark wrote: As far as I can find, the leaves and flowers don't contain Inulin, the fart ingredient.
Dealing with the farts from the tubers, there are four ways to convert the fiber Inulin into mostly fartless fructose; freezing, fermenting, cooking in an acidic ingredient or slow cooking for around an hour.
If you want them chipped raw in salads, either toss them into the freezer for a week or so, or if your winters are cold enough to freeze them, dig them when the ground thaws. Get them before they start to sprout, when they start to sprout the flavor goes 'off'.