An invigorating herbal and medicinal drink which has marked restorative effects on the consumer. Known for centuries in Überwald, any Igor worth his stitches knows the secret(1), and will happily brew a cup for a Marthter who is tired and in need of relaxation at the end of a long day. There is no alcohol in it whatsoever, partly because alcohol cannot survive the company of the other ingredients, which Igor will vaguely define as tree-bark. If pressed, Igor will also refer to naturally occurring mineral salts, and then smoothly inform you that in Überwald, nothing gets a man out of bed in the morning and out working in six feet of snow to hammer through the plug of ice in the well faster than a mug of hot Splot.
It's just a shame that the human speech faculty cannot keep up with the surging thoughts and bright sparkly new ideas running through a Splot-permeated brain.
Later on, you may discover that belladonna is a herb, and arsenic salts are indeed a naturally occurring mineral. It is currently outlawed in many parts of modern Überwald. Moist von Lipwig re-acquaints himself with a taste of home in Making Money.
(1) It is not a word one wants to hear from an Igor, however. Not to one's face, at least.