I didn't know what the they where but somebody gave me some and I just peeled it, cut it up and steamed it, but you could totally throw this into all sorts of casseroles, soups, roasts or hangi it's really nice! Not too strong of a flavour kind of like a potato with a celery-like tinge, 10/10 will have more often ๐
Update: apparently they turn to mush if you roast them
In Christchurch we find it around this time of the year in supermarkets sometimes, or at Healthy Harvest in Prebbleton.
Interesting! I spent some time in my younger days working in the produce section of supermarkets, and never saw it.
I'm keen to get back to a weekend market and see if I can find one.