Salabat is hot ginger tea made by boiling crushed ginger in water. Brown sugar is used to sweeten the beverage. Camote, sago, or carabao's milk are added by some to salabat.
Salabat is found to have healing properties and is used to ease cold symptoms and stomachaches. It soothes sore throats and is said to sweeten the singing voice. It is now available in powdered form for convenience in preparation. It is a favorite drink during the cold season, and is often given out to buyers of bibingka and puto bumbong outside churches after Simbang Gabi at Christmastime.
http://karen.mychronicles.net/2005/02/06/salabat-ginger-brew/#more-46 Salabat description and recipe