Quarter prunes; remove pits. Puree in blender or food processor, a small portion at a time, until smooth; measure 1 quart puree. Add sugar and spices. Pour into large pan; simmer, uncovered, until mixture thickens (about 1-1/2 to 3 hours). Stir frequently as mixture thickens. Add liqueur; cool. Poor into freezer containers; store in freezer.
Makes about 4 cups.
Cajun Country -- New Iberia, Louisiana