This is an excerpt from An Anonymous Andalusian Cookbook
(Andalusia, 13th c. - Charles Perry, trans.)
The original source can be found at
David Friedman's website
Syrup of Sandalwood: Way of Making It. Take two ûqiyas each of red and white sandalwood, and an ûqiya of white manna of sugarcane. Then pound the sandalwood and cook it in rosewater until its substance comes out, and let there be five ratls of the rosewater. Then take the clean part of it and add it to two ratls of sugar, take the tabâshîr and put it in a bag, and cook all this until it forms a well-made syrup. Its benefits are to calm the heat of jaundice, to cut thirst, and to profit in the other ailments and fevers of jaundice. It leaves the nature as it is, without causing retention or thinness of urine. It fortifies the stomach, the liver, and the other organs, and in this it is most extraordinary.