Matt Preston and Nigella Lawson arrive at the contestant house in the middle of the night as the three best from Nigella's invention test are asked to create a midnight snack for a chance at immunity.
MasterChef Australia is an Australian competitive cooking game show based on the original British version of MasterChef. Food critic Matt Preston, chef George Calombaris, and restaurateur and chef Gary Mehigan serve as the show's hosts and judges.