Tanqueray is a brand of gin produced by Diageo plc. It is a London dry gin, reflecting its distillation process and origin in Bloomsbury, London. Tanqueray London dry gin is made by four time distilled grain, with select botanicals added during the second distillation. While the Tanqueray recipe is a closely guarded trade secret, it is known to contain four botanicals: juniper, coriander, angelica root and liquorice, the same four botanicals from the original recipe.