Jess Liemantara

The amateur cooks have one hour to recreate their signature dishes for the first auditions.

The 24 contestants enter the MasterChef kitchen and are greeted by legendary chef Gordon Ramsay; when they get over the shock he tells them he will be here for the entire week to mentor them through the first stage of the competition.

Nigella Lawson stops by with challenges and surprises for the contestants, her mystery box reveals a range of her favourite ingredients.

The top 24 enter the MasterChef kitchen for their first official challenge.

The contestants face a big surprise in their Mystery Box Challenge; the invention test provides them with an opportunity.

It's day two of Gordon Week and today is a service challenge day with Gordon Ramsay himself running the pass; Gordon praises their efforts from yesterday, saying that he tasted some of the best food Australian has to offer.