Oliang

thumb|A cup of oliang in Ayutthaya Province

Oliang (, , also spelt oleang and olieng), commonly known as Thai iced coffee, is a popular Thai beverage. 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. The drink is noted for its coffee aroma and smoky notes from high-roasted grains and seeds.