For the cherry-coconut jam, puree one third of the pitted cherries. Put in a pot with the remaining cherries, the cherry juice, the scraped out pulp of the vanilla pod and jam sugar and mix well.
Cover and let steep for about 2 hours. Then bring cherries to a boil while stirring, boil for 4 minutes until bubbling.
Stir in cardamom and coconut syrup. Pour jam into well rinsed jars and seal.