Grace Jupp

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

Poh Ling Yeow presents the season's first mystery box challenge. The contestants must create a winning dish with basic staples and little other ingredients.

In the first elimination challenge of the season, the contestants must cook a dish from their favourite childhood memory. The least impressive dish will send its cook home.

Jamie Oliver returns for another day in the kitchen, as contestants battle to secure a place in the first immunity challenge.

Emelia Jackson, former MasterChef winner and the master of cooking desserts, shares some secret tips with the contestants. To save themselves from elimination, the contestants must make a dish using Emelia's choux pastry recipe.

There's a catch to the flavour bombs that Jamie Oliver has left behind for the contestants to cook with. They will only be revealed 15 minutes into the cook and must be included in the dish.