National Chocolate Week: the best events to sink your teeth into Blood & Chocolate York Rave reviews: Blood + Chocolate (JOHN SAUNDERS) With a name like Blood + Chocolate, you could easily think this is a launch party for an unsavoury new batch of Hallowe'en confectionery. In fact, this is a landmark theatre event - half walking tour, half multimedia experience - that tells the story of the First World War's impact on the workers employed by York's chocolate factories, and their families. The piece, which involves a cast of over 200, is performed in promenande style throughout York itself, including in some of the city's most famous buildings, and has already attracted rave reviews. Unmissable, even if it is raining. October 3 to October 20, 7pm Chocolate Moulding Class, Colchester Chocolate Studios, Colchester Essex, CO1 2ZF Learn how to mould and decorate your own lovingly-created chocolates at this two-hour class, which is being heftily discounted from the usual price of £65 especially for Chocolate Week. After you've got your hands appropriately chocolate-y, staff will show you how to package up your finished creations so they look as good as they taste. Christmas presents sorted. October 1 to October 31,11am and 6:30 pm Chocolate Tree Open Day Haddington, Scotland, EH41 4DY Always dreamt, like Roald Dahl's Charlie, of seeing the magical interior of a chocolate factory? You can turn fantasy into reality this week, as artisan chocolate manufacturer The Chocolate Tree is opening the doors to its East Lothian headquarters. The team will spend an hour with guests, showing them around the factory and explaining the journey from cocoa tree to finished bar. And the best thing is? It doesn't cost a (cocoa) bean. October 15 and October 16, 1pm Free An Evening of Fine Tequila and Fine Chocolate Central and Co, 22 Great Marlborough Street, London, W1F 7HU Chocolate king: Paul A.Young at work (REX/MATT LLOYD) Those who think tequila is only fit for for downing at dodgy bars might benefit from this event, which sees chocolatier Paul A. Young and Aqua Riva tequila expert Cleo Rocos sharing their knowledge (and a cocoa-flavoured tequila) with guests in an intimate bar setting. Salt and lime is strictly off the menu. October 17, 7pm Chocolate tasting dinner Hardy's Brasserie and Wine Bar, 53 Dorset Street, London, W1U 7NH Chocolate is the ultimate sweet treat, but its rich flavour can work surprisingly well in savoury dishes too. Popular neigbourhood brasserie Hardy's is teaming up with Rococo chocolates to offer a three-course menu themed around the beloved cocoa bean. The confit duck in chocolate sauce looks especially intriguing. October 14, 7pm Follow our chocolate blogger Andrew Baker for all the latest news on Chocolate Week