Earl Grey tea is “any blend with the addition of oil extracted from the rind of the bergamot orange, a fragrant citrus fruit.”

I’ve tried every Earl Grey I’ve come across.

Twinings is the brand poured in my castle.

The blend is named after the 2nd Earl Grey, British Prime Minister in the 1830s, who reputedly received the blend as a gift from a Chinese mandarin.

The tea proved so popular in the Prime Minister’s drawing room that his tea merchants, Twinings in the Strand, were given a sample and asked to come up with a close match. Twinings sold the first “Earl Grey’s tea” in the British market. Twinings Earl Grey blend includes China tea, Indian Darjeeling, Ceylon, and a hint of Lapsang souchong, a strong, “smoky” black tea.

Earl Grey tea – Wikipedia