Wash the currants, drain and scrape off the panicles. Weigh 1.4 kg berries. Mix with syrup and jam sugar in a large pot. Bring to the boil over high heat while stirring. Then stir constantly until at least
Cook for 4 minutes until bubbly. Skim off any foam that may have formed.
Pour the currant jam immediately into clean twist-off jars. Close the jars and turn them upside down for about 5 minutes. Let them cool down. Lasts at least 3 months.