Pit all cherries, leaving a few whole for garnish.
In a saucepan, mix the cherries, sugar, and water. Bring heat to medium high and stir, slowly reducing the liquid. Skim the surface of the syrup once in a while.
Once the liquid has reached a syrup-like consistency, about 25 minutes, remove from heat. Set aside to cool for 1 hour. Put in an airtight container and keep in the refrigerator.
For serving: In a frosted mug, add a scoop of ice cream, pour 1 tablespoon of the cherry mixture and top with coke. Garnish with fresh whole cherries.
Cook's Note: For a drink, remove the vanilla ice cream and add a splash of spiced rum.