| • | Wash the plums thoroughly and wipe them.
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| • | Discard the seeds and cut them in halves.
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| • | In a sauce pot, mix plums, lemon juice, water and pectin.
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| • | Bring this mixture to boil over high flame, stirring it constantly.
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| • | Add sugar and resume boiling.
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| • | Stir constantly and boil vigorously for a minute.
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| • | Transfer the mixture into hot jars leaving some space.
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| • | Put the lid and process the mixture for 10 minutes in boiling water bath. |