Cadbury Dairy Milk is a brand of milk chocolate manufactured by Cadbury. 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. It is manufactured and distributed by the Hershey Company in the U. S. under licence from Cadbury.