Brent Draper

The judges are joined by special guest Jamie Oliver, as the contestants prepare for a season of secrets and surprises.

Jamie Oliver returns to present the contestants with two difficult challenges: a 15-minute meal and his mushroom and spinach rotolo.

It's a race for the last spot in the immunity cook. There are four coloured cloches with secret flavour bombs left by Jamie Oliver, but they won't be revealed until 15 minutes into the task.

The final three must keep up with Curtis Stone as he whips up a magnificent beef dish. The contestant whose plate most closely resembles Curtis' creation will earn a whopping advantage for the semifinal.

It's Grand Finale Day and whichever cook scores the most points across two rounds will lift the trophy aloft, claiming $250,000 in prize money and winning the title of MasterChef Australia 2023.

It's nearing the end and all that stands between the semi-finalists and the Grand Finale is an epic three-course service challenge battle.