Stir together cherries, sugar, cold water, and cornstarch in a medium saucepan. Cook over medium-low heat, stirring often, 12 to 15 minutes or until thickened. Remove from heat, and stir in Kirsch or brandy, vanilla, and salt. Cool completely (about 1 hour).
Great way to use cherries - we used as a sauce over ice cream. Delicious! I didn't find that it had to boil all that long. Used brandy. A simple way to dress up ice cream and have a dessert for company.