Things that should be growing in your winter garden but probably aren’t (episode 1)
Salsify and Scorzonera

Very cold hardy, easy to grow and exceptionally prolific. you probably won’t find them at your local mega mart and the organic stores for wealthy hippies will charge you an arm and a leg for it.
Hugh Fearnley-Whittingstall shows you how to cook it (video available at link)
Salsify and scorzonera gratin