I am loving David Lebovitz' cookbook RIPE FOR DESSERT. His quince marmalade looks so good with Spanish Manchego cheese, one of my favorites which I always use for apple and fig grilled cheese sandwich. You will need 3 quinces and half a lemon.
To make: Place in a medium sauce pan 3 cups sugar and 4 cups water, bring to a boil. Quarter, peel and core the quinces then coarsely grate using a metal grater. Add the lemon half and the grated quince to the boiling syrup. Slow cook on medium heat until thick and reddish in color, about 30 minutes or when candy thermometer reads 220. Remove the lemon half and spoon into clear jar. Enjoy.