Oliang (Thai: โอเลี้ยง, pronounced [ʔōːlía̯ŋ], also spelt oleang and olieng[1]), commonly known as Thai iced coffee, is a popular Thai beverage.[2] Oliang is prepared from a mixture of Robusta coffee grounds, brown sugar, and various grains and seeds like cardamom, corn, soybeans, rice, and sesame seeds.[3][1] The drink is noted for its coffee aroma and smoky notes from high-roasted grains and seeds.[4]