(Chicken Stir-Fry with Holy Basil)
Two of the common types of basil used in Thailand are now available in North America. Bai horapha tastes like a good strong Italian sweet basil and can be found in Asian markets and some supermarkets, usually sold as Asian basil or Thai basil.
The basil traditionally used in this recipes is bai gaprow, or holy basil which can be harder to find because of its shorter shelf life. Holy basil hasn't much taste when raw, but when cooked it becomes strong and distinctive. Asian basil makes a very good substitute, though it can't be cooked as long or it will lose flavor.