When gooseberries are in season, Redzepi juices them to flavor this dish. Verjus (a tart bottled juice made from unripe grapes) or a combination of white grape juice and cider vinegar make great substitutes.
In this surprising main course, Redzepi pot-roasts whole celery roots. Be sure to use small celery roots; larger ones will not cook evenly. The chef also cooks small heads of cauliflower in this way.
Redzepi uses whatever foraged mushrooms he finds to make this rich ragout; feel free to do the same while foraging at your local farmers' market or supermarket. Omit the oysters and lardo (used here in place of Speck), if desired.