In medium saucepan, combine sugar, cornstarch, salt and water. Cook over medium heat until mixture thickens, stirring constantly. Stir in cherries. Reduce heat to low; cook 3 to 5 minutes, stirring occasionally. Remove from heat; stir in kirsch.*
To serve, place brownies on individual dessert plates. Top each with 1/2 cup ice cream. Spoon warm cherry sauce over ice cream. Serve immediately.