Quince jelly

Sterilize eight 8 oz jars in boiling water for at least 5 minutes, and have new lids ready.

Place the quinces in a large pot, and pour in water. Bring to the boil, then reduce heat to low, and simmer, covered, for 15 minutes. Strain off 1 litre of the juice.

Mix juice with sugar and lemon juice in a heavy pot, and bring to the boil over high heat, stirring constantly. Stir in pectin, and return to the boil. Boil for 1 full minute, stirring constantly. Remove from heat and skim off foam. Ladle into hot sterile jars, and process for 10 minutes in a hot water bath to seal. Refrigerate jelly after opening.

Store sealed jars in a cool dark place. Refrigerate jelly after opening.