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.

The technical challenge requires a steady hand to master its intricacies, and there's no room for error.

And finally there is a showstopper where the ovens are off and the fryers are out, as the bakers are challenged to do their version of a Spanish classic.

Three challenges, three chances to win star baker, three chances to avoid leaving the tent.

It's week six of The Great British Bake Off and just seven bakers remain. This week, for the very first time on Bake Off, it's Botanical Week.

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.

Paul and Mary are looking for beautifully flavoured sponges and to be wowed by stunning floral designs. Three challenges, three chances to win star baker, three chances to avoid leaving the tent.