Bake Off: The Professionals

The teams compete to make perfect batches of miniature classics - 24 conversations and 24 tartes aux fruits - as well as a reinvented Black Forest gateau

The five teams take on a layered slices challenge including tiramisu. There's also a Showpiece of 36 servings of croquembouches. The lowest ranking outfit will be eliminated.

The four remaining teams are challenged to demonstrate their skills with chocolate, and for the first challenge, they must rely on their patisserie knowledge to succeed in a test where the recipe is a secret. They must then produce a showpiece on the theme of masked balls, which must incorporate two types of filled and moulded chocolates and a moving part.

Cherish Finden and Benoit Blin challenge the bakers to prepare two batches of perfectly uniform miniature classics - 24 pont neufs and 24 tartes au citron - in just three and a half hours. For the showpiece challenge, they must reinvent a classic Eton mess and turn it into a masterpiece of their own devising.

The teams take on a fruit roulade and opera slices. They also remodel the classic French pastry, the religieuse.

Liam Charles and Tom Allen put the remaining teams to the test with a secret recipe challenge, then gives them a chance to impress judges Cherish Finden and Benoit Blin with their showmanship by making a chocolate showpiece inspired by the theme of the four seasons.