A London fog is a hot tea-based drink that consists of Earl Grey tea, steamed milk, and a sweetener, often vanilla syrup.[1] Earl Grey tea imparts its flavors of black tea and bergamot, a citrus.
It was invented in Vancouver, Canada,[2] in the 1990s by Mary Loria. Loria, who was pregnant at the time, frequented Vancouver's Buckwheat Cafe. After inventing the drink, she began ordering the drink at other cafes and recommending it to others. The trend spread. Despite conceiving the drink herself, Loria does not know who created the name.[3] The term "fog" refers to the steamed milk.[4]
The basic ingredients of a London fog are Earl Grey tea, vanilla flavoring, raw honey (optional), lavender (also optional), and milk of choice.
Variations of the London fog involve substituting the tea leaves and using milk alternatives. It is popular in the Pacific Northwest and on Canada's West Coast.[5]