https://www.food.com/recipe/cherry-sauce-15525

3⁄4 cup sugar
2 teaspoons cornstarch
1 dash salt
1⁄3 cup water
4 cups fresh tart red cherries or 4 cups frozen unsweetened tart red cherries, pitted

1. Combine sugar, cornstarch and salt in a saucepan.
2. Stir in water.
3. Add the cherries and cook until thick and bubbly.