This brightly colored sauce has a tart, lively flavor because the berries aren’t cooked. Serve it over ice cream, cakes or fresh fruits. It keeps well, refrigerated, for about 3 days.
Puree the raspberries in a food processor or blender until smooth. Strain to eliminate the seeds. Add sugar, lemon juice and optional spirit to taste. (If using frozen raspberries, thin the sauce, if necessary, with a little of the reserved berry juices.)