Audra Morrice

Aspiring chefs draw their weapons for a culinary showdown judged by world-renowned experts. At the end of a series of challenges, there remains a survivor who is crowned the best in Australia.

The contestants are met by a bust of judge Jean-Christophe Novelli - made entirely of butter - and must create a dish celebrating butter, with 75 minutes on the clock.

In the Mystery Box challenge, the contestants go head-to-head with a wrapped-up surprise.

MasterChef royalty Peter Gilmore presents a Mystery Box packed with ingredients from some of his most iconic dishes, from the world-famous Snow Egg to the decadent Chocolate Ethereal.

MasterChef welcomes renowned author and Yotam Ottolenghi's protégé, Ixta Belfrage, for a delicious debut. The British chef has brought not only a mystery box of her favourite products, but also a secret ingredient.

To win immunity and a chance to see their dish added to the menu at Gordon's new London restaurant, the chefs must create an elevated version of their favourite late-night snack.