This week, Michelin-starred chef Tom Kerridge travels the country to find out what makes the best Indian curry and uncovers the trade secrets behind our takeaways, while Cherry Healey explores the fascinating stories that helped shape our communities as well as our palates, and learns how Queen Victoria put curry on the British menu.Then three of the nation's award-winning Indian takeaway chefs are invited to compete in a contest in Bradford, the curry capital of Britain. Each is passionate about their own style of cooking, but they all have very different ideas about what makes the best Indian takeaway. For one, it is family recipes passed down through the generations, for another it is using the freshest ingredients grown on his own allotment and, for the third, it is taking inspiration from across India and adapting it for modern British tastes.