This recipe was snipped from a vintage recipe folder, could be from Betty Crocker. Date unknown. Recipe is typed below along with a scanned copy.
PRUNE-ORANGE FILLING
Mix together in saucepan…
3 cups cut-up cooked prunes (drained)
1/2 cup sugar
1/2 cup orange juice
2 tbsp. lemon juice
2 tbsp. grated orange rind
Cook over low heat, stirring constantly, until thickened (about 10 minutes). Cool.