Try this La Cotognata recipe, or contribute your own.
While standard fruit jellies rely on commercial gelatin or added powders for structure, quince paste achieves its firm, sliceable consistency through the fruit's own naturally occurring starches. Quinces demand a specific processing method that separates them from standard apples or pears, requiring initial boiling until tender followed by a thorough pass through a tight food mill.
Proper storage involves keeping the solidified blocks in a cool, dry environment wrapped tightly to prevent unwanted moisture absorption. Maintaining a consistent low heat during reduction ensures the paste develops a deep amber hue without burning the sugars.