Which prime minister is associated with a hot drink?

Earl Grey is a type of black tea, flavoured with bergamot oil.

It is named after Charles Grey, second Earl Grey who was Prime Minister of The United Kingdom from 1830 to 1834.

The reasons for naming the tea after him are not clear, different versions of the story being promoted by different tea manufacturers, but it is thought that he was given bergamot flavoured tea in his capacity as a diplomat; by whom and when the gift was made is disputed.