The semi-finalists are whisked off to the stunning Scottish Highlands, where maestro Mark Donald puts them to work at The Glenturret Lalique, a two-Michelin-star restaurant.

The six semi-finalists are asked to cook their own Thai-style dish from a larder of ingredients selected by John Chantarasak.

The semi-finals begin with the remaining eight chefs challenged to deliver a dish that uses all the chosen ingredients, with absolutely nothing wasted.

Five more chefs take on the pop-up challenge of a lifetime as they prepare tacos, octopus and custard tarts.

Knockout week continues as the ten remaining professional chefs are split into two groups. Five of them head to Boxhall in central London to meet Marcus and Monica for their first challenge.

Knockout week has arrived. It will see the best 13 chefs who have cooked their way through the heats and quarter-finals face an invention test.

The last group of quarter-finalists must do something magical with mince if they are to make it through to knockout week.

2018 finalist Matthew Ryle sets the skills test challenges: raviolo stuffed with pea and ricotta and poached pear mille-feuille with a hazelnut praline cream.

2018 finalist Matthew Ryle sets the competing chefs skills tests inspired by French classic cookery, highlighting just what you can achieve with red mullet and roasted poussin.

This week's quarter-finalists are faced with an invention test that must scream chicken, but which only includes off-cuts.

The chefs have just 20 minutes to prepare and cook a bavette steak served with a papaya and noodle salad and crispy noodles.

2022 champion Nikita Pathakji sets a new group of chefs the task of recreating her dish of king prawns served in a coconut and lemongrass broth.

The chefs are challenged to create their own special twist on rice pudding, before serving up two plates of food to impress restaurant critics Jimi Famurewa, Jay Rayner and William Sitwell.

Philli Armitage-Mattin sets the chefs a skills test challenge using her own recipes. Two must recreate chicken wings stuffed with pork mince, the other chefs, souffle pancakes with sake-poached plums.

2020 professional finalist Philli Armitage-Mattin sets the contestants a Korean-inspired skills test to make it through to the quarter-finals.

It's the first quarter-final, and the chefs face an invention test demanding that they do something magical with an ingredient they will all have probably worked with before – king prawns!

The challenges for another group of contestants aiming for a place in the quarter-finals include preparing a dish of steamed razor clams and a dessert with authentic cranachan cream.

2016 winner Gary Maclean, who has gone on to become the first National Chef of Scotland, sets the challenges for four chefs seeking to make it through to the quarter-finals.