Shavuot is my favourite foodie festival. For me it's all about the cheesecake, which is brilliantly adaptable. It’s never going to be a health food so you might as well pull out all the stops and go for it. This year I’ve done just that, with this malty, chocolatey, creamy treat. It’s a no-bake recipe, so you don’t even have to turn on the oven.