Currabinny Cooks: The ugly vegetable that leads to beautiful dishes

Kobbly, caked in dried earth, warted, whiskered and strange. The celeriac is at first sight, probably one of the ugliest vegetables there is, even amongst other less than beautiful winter roots like parsnip and swedes.
Often sold in supermarkets rather puzzlingly wrapped in plastic, adding further to its alarming appearance celeriac seems wholly unappetising.