I'd not come across this until now - but its a revelation. Its really delicious. Some say that the taste is like parsnips mixed with carrots and it certainly looks almost identical to parsnip. To me it is much more perfumed and tastes of parsnip with a hint of carrot and Jerusalem artichokes. Its lovely grated in salads or made into a puree. I think it may be more well known in the USA? Has anyone else tried it?