The celebrity bakers take on three challenges - brownies, a 3-D biscuit, and a technical challenge that is quite a handful.
The celebrity bakers tackle topped flapjacks for the signature challenge, a tricky technical, and make their 'happy places' out of meringue for the showstopper challenge.
Comedian Johnny Vegas, grime artist Big Narstie, Olympian Katarina Johnson-Thompson, and Labour MP Jess Phillips handle shortbread for their signature challenge, get to grips with a picnic favourite for the technical, and re-create themselves in cake form as their showstopper.
Jeremy Paxman, Joe Wilkinson, Sally Lindsay, and Georgia Toffolo are in the tent, baking characterful biscuits and 'hobby cakes' as one of them seeks to bag the coveted star baker apron.
The celebs tackle a fruity drizzle cake and a giant biscuit selfie.