Does the London Fog latte taste like the Royal English Breakfast tea latte? London Fog (Dairy Free Recipe) What is a London Fog Latte? Everything You Need to Know My Earl Grey This is my Iced London Fog Latte with cold foam. Its perfectly sweet, creamy, and so refreshing. , A London Fog is a sweetened Earl Grey tea with milk and vanilla. For this London Fog, Im using The London Fog Tea That Makes Me Skip the Coffee Shop