The Great British Bake Off's Josh Smalley has prepared a science-led chocolate and caramel Swiss roll recipe. Not only is it a perfect crowd-pleaser, it showcases some complex chemistry.

For this recipe you will need 2 Swiss roll tins, measuring approximately ... To make the jewelled chocolate bark, if the peel feels wet or sticky, roll in the caster sugar to absorb any moisture.

Line a Swiss roll tin with parchment ... We also have lots of recipe collections like Fakeaway, Chocolate and Midweek Dinners to inspire and delight. We want to give you what you want, and ...

Jamie Oliver’s simple yet innovative carrot cake Swiss roll makes for a sweet treat everyone will love, whether you serve it after a meal or at teatime. Ready in just 48 minutes, this recipe ...

And it's all thanks to Swiss chocolate makers. Most importantly, they invented the conching machine, the most important machine in making chocolate. We visited Favarger in Geneva, Switzerland ...