Red Wine Jus

This is the sauce I served accompanying my prime rib roast. I made it using the juices and vegetables from the roast.

1. Prepare the prime rib roast as described in yesterday's post.
2. After removing the roast from the pan, you can either use that pan (especially if it is a rondeau) or transfer the contents to a pot. If the bottom of the pan is quite charred, then transfer the contents. You want the carmelized bits and vegetables but not anything which will impart a burnt, bitter flavor.
3. Choose a red wine and poor in enough to just cover the vegetables. Add the stalks of the thyme and rosemary used for the roast rub.If the roast is already carved, add in the bones as well.
4. Reduce until almost au sec. Then add some stalk (beef or veg) to completely cover. Reduce the mixture until it begins to thicken and darken. Then add more red wine and continue reducing.
5. Strain the mixture into another pot and reduce further until you have a thick, dark, rich jus. If the mixture is still too thin, it can be thickened gradually with a cornstarch slurry, just note this will become a 'jus lie' and not a true 'jus'.
6. Taste and adjust any seasonings as required.