Twelve new amateur bakers don their aprons and head for the iconic tent in the heart of the British countryside. Mel Giedroyc and Sue Perkins are back, as are Mary Berry and Paul Hollywood, who have devised 30 new challenges to test the bakers' knowlege, skill and creativity.

The competition begins with cake week. The group first take on a British classic and are then faced with Mary's technical challenge - a popular little cake with a fatless sponge and tricky chocolate work. Finally, the bakers have the opportunity to show the judges what they can do with their showstopper.

The best of the bunch will be crowned star baker, while one contestant will be leaving the tent.

The remaining bakers face three biscuit challenges. Who will see their dreams crumble?

The bakers face an ovenless technical challenge and a three-flour showstopper.

It's week four of The Great British Bake Off, just nine bakers remains, and - for the very first time - it is Batter Week. Mary and Paul have set three challenges to test the bakers on some store cupboard classics. To start things off there is a British favourite. It may sound simple, but the judges are looking for perfection - a uniform bake across the batch and a tasty savoury filling. The bakers really have to rise to the occasion in this signature challenge.

It is Pastry Week, and with just eight bakers left, Mary and Paul are looking for perfection. They have set three challenges to test the bakers on three very different types of pastry. For the signature challenge it is breakfast time, Danish style.

In the technical challenge, Mary asks the bakers to keep their cool, giving them limited time and instructions to bake a classic British tart. Mel takes a shift at a London Turkish bakery making baklava, and she discovers the history of this delicate dessert that hailed from the palaces of Sultans.

And finally there is a bite-size showstopper, a fine pastry which notoriously difficult to make and even trickier to bake. Which bakers will impress Mary and Paul enough to keep their place in the tent, and who will be heading home?.

There are three challenges inspired by nature. The bakers can reach for anything that grows to give their bakes maximum botanical taste.

The bakers start with a signature challenge with a twist, that demands sharp citrus flavours and perfect peaks. Hidden under the gingham cloth is a leafy technical challenge set by Mr Hollywood. And finally, the botanical showstopper is the biggest challenge of the series so far - not one, not two, but three tiers of elaborately decorated cake.

The bakers face three sweet challenges, including a mousse marathon showstopper.

For the first ever Tudor Week, the bakers face pies, biscuits and a marzipan showstopper.

The semi-final sees the bakers tackling three patisserie-based challenges.

It is the final, and with just three of the original twelve bakers remaining. The theme for the final is a Royal Bake Off, as the tent plays host to three challenges to impress the Queen.

A catch-up with the contestants from The Great British Bake Off 2015.