Use this delicious recipe in chef Mourad Lahlou's Couscous with Prunes and Toasted Almonds dish from "Mourad: New Moroccan."
Place prunes in a medium bowl; set aside.
Place vinegar, sugar, brandy, cinnamon, peppercorns, allspice, and bay leaf in a medium saucepan and bring to a boil over medium-high heat, stirring to dissolve sugar. Pour over prunes and let cool to room temperature.
Transfer prunes to an airtight container and cover; let stand at room temperature for at least one week before using. Prunes can be stored at room temperature for up to 6 months.