This greasy, trance-inducing substance was traditionally made of hallucinogenic (and often fatal) herbs that had been boiled in pig fat and then strained. It was called “green salve” or “witches’ ointment” and it some of the stock ingredients (solinicaeds) caused a “flying” sensation as the hallucination began — hence the popular image of the flying witch.
Great care had to be taken in preparing this ointment, though. Traditional ingredients included such components as henbane, monkshood, deadly nightshade, belladonna, hemlock, and mandrake — all lethal in too large a dose. In some cases, that does could be quite small. One witch learned from another how to properly prepare the salve and how to administer it to herself, and I’m sure it was still “At your own risk.
