Sarah Tiong

The contestants are split into teams of four in a relay challenge as each member has 15 minutes to cook and only 45 seconds to hand over to the next cook in the relay.

Contestants will be working in teams to build an edible art installation in a specially constructed greenhouse. With just 7 hours to impress the judges which team will be safe from elimination?

The judges reveal that each contestant's mystery box, contains four ingredients which they can barter with one another for. The top four dishes will see their makers cook for immunity tomorrow.

Contestants must make a dish that has two different flavoured ice-creams that only work when they are eaten together. In round two, they must make a dish using one of five unusual flavour pairings.

The three best performers from the invention test now compete for a chance at immunity. Will our amateur cook have what it takes to out-perform one of Australia's best chefs?

Each team must cook a three-course meal for 120 guests. The judges reveal three ingredients: black garlic, ginger and potatoes. Each team must feature one of the ingredients in each course.