Guest chef Curtis Stone entered the kitchen again, this time to set a two-round elimination challenge. In the first round, the All-Stars had to keep up with Stone as he cooked his signature dish of Lobster Ravioli with a Shellfish Sauce, Caramellized Butternut Pumpkin, Sage, Lemon and Pine Nuts. Chris produced the best dish (with only his sauce lacking some flavour) and was pronounced safe after the first round. In the second round, the remaining contestants had to cook a dish with one of four of Stone's favourite Australian core ingredients. Callum and Justine opted for artichokes, while Julie chose the pork and Kate the apples, to make the only dessert of the night. Callum and Kate received good comments overall. Curtis thought Justine's dish was "odd" and Gary also didn't like the idea of putting two dishes on the same plate. Julie had some trouble with her pork in the pressure cooker, but pulled herself together in time to plate up a Plan B. Despite being commended for her survival instincts in the kitchen, Julie was sent home.