It's the middle of winter and I'm going to dig up some Jerusalem artichokes for a salad today. It still seems odd to me to harvest the best vegetables when they're under snow, but these 'chokes are so good right now. I don't know why it took me so long to get them started.
If you've never tried them, think about planting a few this year. You can eat them like potatoes, but you can eat them raw, too. I can't describe the taste; you'll just have to taste them for yourself.
Try them raw, then slice and fry or boil them. They cook very quickly. Use them in stir fry, but don't put them in until everything else is done. They can take the place of water chestnuts.