For the cherry-banana jam with currants, chop the fruit. Mix with the preserving sugar, rum and lemon juice.
Allow the fruit mixture to infuse for at least 2 hours, then strain. Bring the mixture to the boil (stirring constantly) and boil for at least 3 minutes until bubbling.
Pour the still hot cherry-banana jam with currants into boiled jars. Close immediately and turn upside down for about 5 minutes.
Preparation Tip:
To check whether the jam has been cooked long enough, make a jelly test: to do this, put 1 tablespoon of the jam on a plate and check whether the jam gels. If this is not the case, simply continue cooking a little longer.