MasterChef Australia returns with auditions and 40 of the country's best home cooks are ready. Tonight 20 cooks have 90 minutes to cook their dream dish in order to win one of the 10 aprons on offer.

Another 20 home cooks enter the MasterChef kitchen to compete for 10 aprons on offer. For those who miss out, they learn there will be one final chance to cook for the last four aprons tomorrow.

Tonight, the 20 remaining hopefuls have a second and final chance to cook their way into the competition. Just who will score themselves one of the final four places?

Aussie Rock legend Jimmy Barnes set this season's first mystery box, inspiring the Top 24 with seasonal ingredients they love to cook with. Dish of the day will see its maker safe from elimination.

In the first elimination of the competition, 23 cooks will show the judges a window into their homelife, through a favourite dish that they cook at home for their loved ones.

It's the return of a MasterChef classic with an Invention Test challenging cooks to create an inventive dish using cereal.

The bottom five cooks from the Invention Test face off in a Pressure Test set by MasterChef favourite Maggie Beer, tasked with mastering her signature sour cream pastry in a high-stakes pie challenge.

It's Family Favourites week and social media sensation Andy Cooks (chef Andy Hearnden) is on the hunt for the ultimate breakfast, in an immunity challenge cook with 60 minutes on the clock.

In an elimination challenge centred on reinventing the judges' quick carb midweek dinner recipes, mistakes and time pressure sends one cook home.

It is the first team challenge of the series, and the contestants are all eager to see how well they can work together. The bottom two teams will find themselves in the elimination the following day.

Six contestants face elimination as they must create a dish that represent their family food traditions to fight for their place in the competition.

The Top 20 compete for Immunity from tomorrow's Elimination in a fruity Mystery Box challenge set by Catherine Zhang, marking the start of Viral Wonders Week

Viral sensation Victoria Minell (aka @recipesbyvictoria) sets a challenge to use one of her five viral ingredients in a 75-minute cook to save their place in the competition

Six teams will compete in their first service challenge, tasked with creating one perfect viral-worthy dish to serve to hundreds of diners, and impress a mystery social media-star critic

MasterChef alum and social media star Khanh Ong sets an epic challenge to create a bold, out-there sandwich with a banging cross section, to win the first immunity pin of the season

It's the start of Around the World Week, and global food icon Rick Stein joins the MasterChef Kitchen to set an extra spicy Mystery Box challenge

In an Around the World elimination challenge, MasterChef contestants must create a dish inspired by a chosen cuisine, featuring a surprise hero ingredient revealed only after they commit

It's a fusion invention test today with the contestants having to make dish featuring cuisines from two countries

Chef Rosheen Kaul sets the first full Pressure Test for the season, with an intense, three-hour challenge

Kicking off nostalgia-themed week in the MasterChef kitchen, social media sensation chef Dim Sim Lim sets a 60-minute mystery box challenge requiring a steamed element. English

The MasterChef contestants must cook something connected to their heritage to avoid being eliminated.

In MasterChef's most notorious team challenge, four teams will navigate the chaos of the Team Relay to compete for a chance to cook for Immunity.

Guided by MasterChef Alumna Justine Schofield, four contestants put their French techniques to the test for a chance to win a coveted immunity pin.

Curtis Stone kicks off Aussie Classics week, with a once-in-a-lifetime chance for the cooks to have their dish stocked in Coles, as they are challenged to whip up nostalgic Pie and Ice-cream flavours.

With Curtis Stone back in the kitchen, the MasterChef contestants are challenged with cooking a dish that features pork to save their place in the competition.

It's Aussie Classics Week, and there's nothing Aussies love more than a great comeback story. Today, the previously eliminated contestants return for a chance to earn their place back in the competition.

Aussie Classics week draws to a close with an exciting day in the MasterChef Kitchen as guest judge and Aussie icon Robert Irwin sets an Aussie Native Ingredients Elimination Challenge.

It's the start of Sweet Week, and confectionery king Adriano Zumbo challenges the cooks to hero a mystery ingredient in a dessert. The top three dishes will win immunity from tomorrow's elimination.

As Sweet Week continues, the contestants take part in an Ice Cream Taste Test. The first four who guess incorrectly will land in the Round Two cook, after which someone will be sent home.

It's Sweet Week, and today's challenge is an Air Fryer Invention Test, with the top four dishes going into tomorrow's Immunity Challenge. Dish of the day will claim a $5,000 Harvey Norman voucher!

On Sweet Week's final day, four contestants face dessert powerhouse Jess Lemon in a 'Beat the Chef' Immunity Pin challenge, attempting to outcook one of the MasterChef kitchen's pastry prodigies.

To kick off Masters Week, industry icon Josh Niland gives a fish butchery masterclass, and the contestants must use one of his signature butchery techniques to prepare flathead in 75 minutes.

Masters Week continues with Michelin-starred chef Curtis Stone returning to the MasterChef kitchen for a high-stakes elimination where contestants must hero a flat iron steak.

Masters Week continues as hatted Melbourne chef Tom Sarafian joins to showcase his famous hummus dish, inspiring contestants to make an immunity-worthy dish to get one step closer to the Top 10.

In the final Masters Week challenge, four contestants compete in a pressure test set by Kirsten Tibballs to avoid elimination and secure their place in the Top 10.

It's Knockout Week, and our 10 cooks face the iconic twins challenge inspired by MasterChef couple Sarah Todd and Declan Cleary and their identical twin girls, Charlotte and Claudia.

As Knockout Week continues, the MasterChef judges have each filled a fridge with ingredients. Eight contestants must choose a fridge, without looking inside, and use its contents to make a dish.

It's Knockout Week, and two teams of three, led by Andy and Jean-Christophe, must deliver a two-course fine dining menu for 16 Coles Farmers. The losing team will head into tomorrow's elimination.

It's Knockout week and the first elimination for the Top 10. The seven contestants cooking must feature an ingredient chosen by one of their fellow cooks to keep their place in the competition.

Our Top 9 contestants welcome one of the most famous chefs in India, with over 150 cookbooks and 20 million social media followers, Chef Sanjeev Kapoor, who is here to set a Mystery Box.