The best home cooks from around the country will face challenge after challenge to see who will rise to the top and take home the coveted title of Australia's next MasterChef.

The judges are looking for just five more cooks to round out the top 24. The home cooks who are given a second chance will battle it out for the remaining aprons.

This mystery box is selected by MasterChef Australia champion Emelia Jackson. The three best dishes will be awarded an immunity pin that can be played at any time during an elimination cook.

In this two round challenge, contestants must create dishes that feature a chicken or an egg. The contestant with the least impressive dish will be the first sent home.

Superstars Week kicks off with Nigella Lawson. Contestants must recreate Nigella's favourite dish based on her detailed description, with no ingredient list, recipe or visual reference to work from.

Yotam Ottolenghi presents his favourite flavour bombs: numbing oil, fenugreek marinade and chipotle peanuts. Each team must create a meal that features one of Yotam's flavour bombs.

The judges reveal this elimination challenge is over two rounds and is set by cooking legend Massimo Bottura. Massimo presents his take on the classic dish: mac and cheese.

Clare Smyth reveals the dish that has inspired her choice of mystery box ingredients. Contestants must create a sweet or savoury dish using the ingredients that Clare has chosen for the mystery box.

Heston Blumenthal sets an immunity challenge in which contestants must use a popular breakfast ingredient to create a delicious dessert.

MasterChef alumni Poh, Callum and Reynold present the contestants with three dishes from their venues. Contestants must create a dish worthy of a place on the menu at any of these establishments.

Each team must cook the same six dishes within the time allocated. Each contestant on the team will cook one of the dishes and will be judged against the same dish made by the other two teams.

Each contestant must choose the dish they feel most comfortable making: a savoury tart or sweet tart. Jock then switches the dishes and contestants must cook the dish they're least comfortable with.

Contestants must create a dish using the staple ingredients under their benches as well as two ingredients from the garden for flavour. Contestants with the top five dishes will compete for immunity.

Contestants must choose an ingredient they would like to feature in a dish, but they won't know the ingredient they must pair it with until they have locked in their choice. A Masterclass follows.

Keen as mustard, the contestants have to cook a dish that interprets one of the classic food sayings on display. The contestant who fails will be going home. That's the way the cookie crumbles.

It's Meet the Masters Week. This opportunity gives the contestants up-close insights into the skills of the best culinary masters in Australia.

The least impressive team from the master team challenge must cook off in this pressure test.

The contestants enter the kitchen ready to take on the mystery box challenge set by a Michelin-starred chef.

In a very special challenge, the top four contestants from the previous challenge meet in the kitchen to be taught a lesson in cooking with fire. The most impressive cook wins immunity.

For the final cook of Meet the Masters Week, the bottom four contestants must make a dish that demonstrates how they have mastered a skill, flavour or technique they have learnt across the week.

Andy reveals that every challenge this week will be a service challenge and all 16 contestants are in with a chance at winning immunity from Sunday's elimination.

This challenge is all about the ingredients. Each team must feature the same ingredient in each course

For this challenge, two pantries are on offer: a European pantry and an Eastern pantry. By the toss of a coin, the team that win the toss get to choose their desired pantry.

Each team has two-and-a-half hours to cook a three-course meal and each course must champion a colour chosen by the toss of a coin.

Each team must create a dish that features the ingredient hidden underneath the tablecloth and must also use an allocated electrical appliance at some stage during the cook.