Jerusalem artichokes

Only just seen this thread.

Jerusalem artichokes make a lovely cream soup.

This is good with butter but olive oil is healthier.

Soften 1 lge chopped onion in butter/oil with a chopped stick of celery and a little garlic (I use one clove but it's a matter of taste)
Peel about 2lb JA's (use a bowl of acidulated to dip them in otherwise they may start to go black), slice them and add to onions
Add a couple of pints of stock (I use chicken)
Cook until tender
Blitz it to a creamy consistency
Season to taste

You can add more stock until it's the thickness you like
When serving put a swirl of cream on top and, if you like it, a little freshly grated nutmeg

Other variations you can try is adding a bay leaf when cooking or a little rosemary (not both, as they clash)
You can also add a few thin slices of boiled JA if you want a bit of a crunch in it.