20 ounces crushed pineapple in juice
2 cups granulated sugar
Bring pineapple and sugar to a boil in a large saucepan and cook 20 minutes, stirring constantly until thickened or until the temperature reaches 220F on a thermometer .
Pour immediately into hot sterilized jars; wipe rims with a clean cloth, place lids and screw on bands fingertip-tight.
Process jars in a water-bath canner for 5 minutes.
Place jars on a clean towel.
Cover with towel to prevent drafts and let cool undisturbed for 24 hours.
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