This 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.
The top three contestants from the invention test must make a filled pasta with a matching sauce. The winner will enter a cook off for immunity against guest chef, Jake Kellie.
2015's Masterchef, Billie McKay, picks the ingredients of the First Mystery Box.
In Round One, they must face a skills test. Matt Preston tells them that it is not just any skills test, but a fast and furious triathlon of skills tests related to dessert.
It takes 20 ovens, miles of stainless steel, an arsenal of appliances and knives that chop, cut, slice and dice, to discover the best amateur chef in Australia.