Entered for safekeeping, as I couldn't find it at my local liqueur store. Found posted by Vester Lynd on eGullet forum: http://forums.egullet.org/index.php/topic/70880-making-your-own-grenadine/. Basically it is a Pomegranate simple syrup with a little vodka and 2 "secret" background flavors. If you can only find Middle East orange flower water, use only 1-2 drops. Supposedly the alcohol extends the shelf life indefinitely; if you discover mold, throw it out. A "serving" is 1 oz.