Reduce the heat to medium low and stir in the cherries. Cook for about 2 minutes. Stir in the brandy and the reserved cherry liquid. Continue to simmer until the mixture is reduced and thickened, about 10 to 15 minutes.
Serve warm.
Notes
Add a bit more brandy if you like a stronger flavor, or, for a non-alcoholic version, substitute apple cider for the brandy.