This is a recipe that has existed for many years. There are variations in several cultures but I was first exposed to it by a former supervisors mother back in the early 1980s. She was a native of Puerto Rico. In the mid 80s I learned it from Rosemary Gladstar herself during a class at the New York Open Center. And beyond all this, it is an unspoken rule in the herbal community that herbal medicine is the people's medicine. We all teach and share recipes so that generations beyond can benefit from this knowledge. Herbal medicine and nutrition knowledge is not to be hoarded and monopolized - it is to be shared for the benefit of mankind. Making your own blends are fine, taking an existing and world known recipe for herbal medicine and finding legal loopholes to privatize and profit from is nothing less than selfish and inhumane.