Cad bury Dairy milk is a brand of milk chocolate currently manufactured by Cad bury, except in the United States where it is made by The Hershey Company. It was introduced in the United Kingdom in 1905 and now consists of a number of products.Every product in the Dairy Milk line is made with Exclusively milk chocolate.In 2014, Dairy Milk was ranked the best selling Chocolate bar in the UK. Cad bury has always tried to keep a strong association with milk, with slogans such as "a glass and a half of full cream milk in every half pound.