MICROWAVE morsels, cream, corn syrup and salt in medium, uncovered, microwave-safe bowl on MEDIUM-HIGH (70%) power for 1 minute; STIR. The morsels may retain some of their original shape. If necessary, microwave at additional 10 to 15-second intervals, stirring just until morsels are melted. Stir in vanilla extract. Serve warm. Store any leftover sauce in refrigerator.
Makes 1 1/2 cups.