white coperose

Ingredients

eye, ʒelke, white coperose, lynnen clothe

Preparation Steps

Original Recipe Text

For to mak an oygnement for þe eyen Tak an eye and roste it ryght harde or boyle it and kytte it in the myddylle and tak owte the ʒelke and þere as þe ʒelke was putt poudre of coporose whyle it is hotte but loke it be white coperose and panne it all to gedre in a lynnen clothe and presse it strongely bytwen thyn hondys so þat the jus of þe eye and coperose come owte togedre (p. 196)

Evidence

"coperose = metallic sulphate"

Remarks

The recipe utilizes 'white coperose' (likely zinc or iron sulphate) combined with roasted egg yolk. The text highlights a pun on 'eye' (meaning both the organ and the egg), suggesting an occult or homeopathic connection in the remedy's efficacy (p. 196).