Greg Rutherford, Francesco Mazzei, John Williams, Merlin Griffiths

James is back in the kitchen on a Saturday morning and with New Year's Eve approaching he's serving up festive food and fun for his guests including Olympic gold medallist and reigning Celebrity MasterChef champion Greg Rutherford, chefs Francesco Mazzei and John Williams, cocktail guru Merlin Griffiths and wine expert Oz Clarke.