Sunchokes - also known as Jerusalem artichokes - are the crisp and starchy tubers of sunflowers. They have a great nutty taste that is perhaps best described as a cross between artichokes and potatoes. These small brown knobs are worth seeking out.
Buying & Storing Sunchokes
Sunchokes are best in fall and winter. Look for firm tubers with smooth, tan skins. Keep sunchokes wrapped loosely in plastic wrap and chilled. Fresh sunchokes will last a week or two (or more) properly stored.