Choose a new cookbook worth up to £28 when you subscribe to our magazine.
Boil the celeriac in a covered pan for 15-20 mins or until tender. Meanwhile, heat a frying pan and cook the bacon for 5 mins until golden and crisp. Add the cavolo nero or cabbage and cook over a low heat for 5 mins.
Drain the celeriac and blitz with a hand blender until smooth. Stir in the butter and cream. When the butter has melted, add the bacon and cavolo nero or cabbage, and stir well. Season to taste.