Here is the recipe for a fantastic Quince Preserve from the Complete Ball Canning Book.
- 3 cups Sugar
- 8 cups water
- 7 cups cored peeled quartered Quince
Prepare canner, jars, and lids. In a large stainless steel saucepan, combine sugar and water. Bring to a boil over high heat, stirring to dissolve sugar. Boil hard, stirring frequently, for 5 minutes. Stir in Quince.
Reduce heat and boil gently; stirring frequently, until fruit is transparent and syrup thickens. The process takes about 1 1/2 hours. Test for consistency using gel method of choice.
Ladle hot preserves into hot jars, remove air bubbles, refill to 1/4" headspace. Wipe rims and add hot lids/rings and process 10 minutes in a water bath canner.
Quince Paste - Here is a great link to a recipe that give you step by step instructions!