This sauce is excellent over fish and/or fresh vegetables. Can also be served over other meats like chicken and steak.
Store leftovers in an air-tight container or mason jar in the refrigerator for 3-4 days.
While using cornstarch is not a necessary step as you can simply continue to simmer the sauce until the cream cooks down and thickens, you will lose volume. Using cornstarch thickens it quickly and allows you to keep the volume.