SOUR CHERRY SYRUP: In large saucepan, combine the cherries with sugar, water and zests and bring to a boil. Cover and simmer over low heat for 40 minutes. Pass mixture through a fine strainer, pressing on the solids. You should have 2 ½ c. Let cool.
Recipe by Geaux Ask Alice! at https://geauxaskalice.com/tart-cherry-gin-slings/