This is an excerpt from A Proper newe Booke of Cokerye
(England, mid-16th c.)
The original source can be found at
Thomas Gloning's website
To make a tarte of medlers. Take medlers when they be rotten, and bray them with the yolkes of foure egges, then ceason it up wyth suger and sinamon and swete butter, and so bake it.
Recipes with similar titles:
To make a Tarte of Medlers (The Good Housewife's Jewell)