Matt Sinclair

The cooks compete in the first Service Challenge of the season. Two teams, aided by mentors Matt Sinclair and Sashi Cheliah, must cook an entrée and a main course dish for thirty diners.

The team challenge is all about the pub lunch. The contestants are split into two teams and must cook three courses for 70 people with Marco Pierre White running the pass.

Contestants have 75 minutes to create a delicious dish based on Nigella Lawson's divine indulgences. The top three will have a chance at immunity, while the bottom three face elimination.

The three contestants with the least impressive dishes from the invention test face off in the pressure test. The contestant with the least impressive dish will be going home.

The bottom three from the invention test must keep up with Marco as he demonstrates his classic John Dory dish. With no recipe or clock, who has cooked their last dish?

In a MasterChef Australia first, the mystery box challenge has been chosen by the viewers. Contestants have 75 minutes to create a dish using at least one ingredient chosen by the viewers.