A behind the scenes look at the manufacture of popular confectionery around the world, including millions of triangular bars of Toblerone coming off the production line in Switzerland. At the KitKat factory in York, the programme reveals how it produces four million a day and that the secret to the middle layer between the wafers is actually other KitKats, crushed up and re-used, while the process behind Lindor balls is shown at Lindt's factory