Overview: 2011 finalist Steve Barringer, 2019 finalist Exose Grant Lopo-Ndiga, 2018 finalist Oli Martin and 2019 finalist Olivia Burt return to cook for judges Marcus Wareing, Monica Galetti and Gregg Wallace. Their skills test involves coming up with a dish inspired by Christmas leftovers. Here, they can catch up with judges and show them how their careers have progressed since taking part in the competition. Then the chefs must impress the judges with a seasonally themed two-course menu.