Rub quinces of with towel, peal, remove seeds, and chop into small pieces. [www.QinSen.com]
Put peel and seed parts into pot. [www.QinSen.com]
Cover barely with water and cook for 30 - 45 minutes. [www.QinSen.com]
Strain and add loquid to fruit; dispose of solids. [www.QinSen.com]
Weigh mixture on scale and ready as much sugar on the side. [www.QinSen.com]
Cook mixture for 30 minutes. [www.QinSen.com]
Add sugar. [www.QinSen.com]
Keep cooking and stirring until mixtures drips of ladle in wide, heavy drops. [www.QinSen.com]
Remove foam. (I put the foam into a seperate bowl and eat it after
it has cooled down. Delicious!)
Fill into glasses (preheat or put spoon into glass to avoid cracking)
and close airtight immediately.