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Three bakers remain but only one can be crowned winner; Paul Hollywood and Prue Leith set three challenges that will test every aspect of the bakers' skills.

It's the final, and the three remaining bakers start with a jaw-dropping choux pastry Signature, before taking on a blast from the past in a sticky Technical and finishing with the ultimate celebration cake Showstopper.

Twelve bakers started, just three remain. Who will succeed with the demanding final challenges, including a high-end patisserie showstopper, to be crowned winner of The Great British Bake Off 2017?

It's Cake Week and the bakers put their twist on the classic Battenberg, face a turning-out technical challenge and pay tribute to their heroes in the showstopper

It's Pastry Week and the bakers tackle choux pastry doughnuts and a tricky Turkish technical, before creating a savoury, delicately designed showstopping pastry pie packed full of flavour

It's the semi-final. The bakers' patisserie skills are tested in a booze-soaked signature, a tricky technical and a delicate showstopper showcasing their finesse and precision.

It's crunch time with Biscuit Week, starting off with a luxurious chocolate coated signature bake, then a snack with family significance for Paul and an eye-catching showstopper.

It’s Bread Week, and the ten remaining bakers have a lot to prove with three tough challenges set by judges Paul Hollywood and Prue Leith. There is a teatime fruity favourite Signature; a deceptively simple time-test of a Technical with an international flavour; and an ambitious Showstopper that’s the largest bread sculpture challenge ever set in the tent. Only one can claim Star Baker, while one of them will leave the tent for good.

The remaining bakers have their knowledge of pastry tested to the max with a savoury take on a French classic, a multi-layered Moroccan Technical, and a towering Showstopper.

The bakers draw inspiration from around the world, including something deep fried and Italian, and a spectacular Indonesian celebration cake.

It is a Bake Off first with Vegan Week. Prue and Paul have set three very different challenges to test the remaining bakers including savoury pastry signature without butter, a cracking technical and a risky but spectacular showstopper.

It's Dessert Week, and the bakers tackle a miniature cheesecake signature, a 17th-century technical and a showstopping jelly art dessert cake, for a place in the semi-final.

The series gets underway with cake week - during which two of the bakers will be sent home. The first stage of the challenge features a fruit cake, while the technical is a retro classic that requires intricate decoration. Finally, for the showstopper, the contestants must create the birthday cake they wish they had received as a child.

In the semi-final the four remaining bakers are all desperate to claim their place in the final showdown; the remaining bakers are just three patisserie challenges away from the biggest day of their baking lives.

It's Pastry Week and the bakers put their stamp on a Cornish classic in the signature, go retro in the technical, and make a showstopping classic tart hidden within a cage.

It's the semi-final and the bakers' patisserie skills are tested as they make delicate layered slices, a French classic and opulent entremets displays. Who will make it to the final?

It’s week two and the remaining 11 bakers face Cake Week – kicking off with a crowd-pleasing signature challenge. Next, the bakers face Prue Leith’s first technical, a complicated cake with a very unusual ingredient. Finally, an ambitious chocolate-collared showstopper turns up the heat in the tent. Who will rise to the various tasks – and who will melt under the pressure? Sandi Toksvig and Noel Fielding present, while series regular Paul Hollywood and Prue pass judgement before another baker leaves the contest.

It is Pastry Week, and Paul and Prue are looking perfection - with savoury and sweet samosas, a classic French technical, and for the final challenge, a daunting majesticpie fit for a banquet.

It's a Bake Off first - Japanese Week - and the bakers tackle steamed buns, a tricky, layered technical and a showstopper inspired by kawaii - the Japanese love of all things cute and adorable

It's the semi-final, and the remaining bakers are tested on their patisserie skills, with a domed Signature dish, a towering Technical and a display case Showstopper

The challenges inspired by the roaring twenties include a slapstick Signature and a tiered Showstopper special.

It's Pastry Week, and the bakers are tasked with making vol-au-vents in the Signature and a delicious savoury snack in the Technical, before creating a showstopping 3D pie-scape depicting their favourite childhood story.

It's Cake Week, and the latest batch of bakers are challenged to produce the perfect vertical layer cake in the signature, an iconic chocolate cake for the technical, and a sponge showstopper that features a menagerie of animals.

In a Bake Off first, it's Botanical Week and the bakers tackle bakes inspired by nature, starting with a spice-filled Signature, followed by a herby Technical and topped off with a floral dessert Showstopper.

It's a Bake Off first as the bakers get groovy for 1970s Week with towering profiteroles and a retro favourite. Whose gateau will steal the show and who'll make the semi-final?

It's Pastry Week and the bakers tackle savoury picnic pies and a classic French rough puff pastry, before creating showstopping decorative sweet pies. Who has the upper crust?

It's Pastry Week and the bakers tackle a frangipane tart and Paris-Brest, complete with a freestanding podium. Who'll be put on a pedestal, and whose dreams will flake away?

It's Autumn Week and the bakers make sweet autumn-inspired pies and transform veg into showstopping cakes. Who's got their eyes on the pies, and who'll be leaf-ing the tent?

The bakers make a classic cottage loaf and head to Devon for the Technical. Whose plaited centrepiece will get the Breadmaster himself, Paul Hollywood, in a twist?

It's Party Week and the bakes have a ball with a sausage roll and make an 'anything-but-beige' buffet. Who will put on a semi-finals-worthy spread and who will be a party pooper?

It's Caramel Week and the bakers make caramel biscuits and turn up the heat with showstopping mousse cakes. Who gets a taste of sweet success, and whose mousse cuts them loose?

The finalists go all out with Signature scones, afternoon tea and tiered celebration cakes. Whose chance of winning has come and scone? And who'll be shedding tiers of joy?

It's Dessert Week and the bakers take on a retro crème caramel and a classic treacle sponge, before creating a showstopping meringue bomb. Who will peak and who will wobble?

In Bread Week, the bakers are challenged to make savoury buns and bread horns filled with delectable delights. In the Technical challenge, the bakers must follow along as Paul Hollywood demonstrates a recipe before them.

The new batch of bakers elevate a loaf cake, tackle a Technical with a twist and make bamboozling illusion cakes. Whose cake fakery will earn them the first Star Baker award?

In biscuit week, the signature challenge sees the bakers making Viennese sandwich biscuits, before taking a nostalgic turn in the technical, as they recreate a retro minty family favourite. Finally, the bakers take on a dramatic showstopper blending comedy and tragedy, as they craft their own biscuit puppet theatres.

It's Biscuit Week and the bakers get stuck into a marshmallow-based Signature challenge, before cracking on with a custard classic in the Technical. Finally, in an illusion-themed Showstopper, the bakers make their favourite meal out of biscuits.

It's the semi-final and the perfect time to test the remaining bakers' abilities in patisserie. There are mini charlottes in the Signature that demand precision, a vertical challenge in the Technical, and finally an opulent Swedish showstopper.

Bake Off is back, as 12 new bakers make their way into a brand-new bubble. The bakers tackle mini rolls, a nostalgic teatime classic, and cakes that defy the laws of physics.

Week 1 in the tent brings 13 new bakers together to test their cake skills. The judges are looking for perfect mini cakes, a tangy technical, and a home baked showstopper.

It's the semi-final and the bakers show off their patisserie prowess with breakfast pastries and a classic-but-theatrical Technical. Who'll make final-worthy fruit entremets?

It's the semi-final and the four remaining bakers take on an elegant French patisserie Signature and a buttery French classic in the Technical, before making a showstopping Italian celebration cake made up of delicate puff pastry layers.