Mix the beef broth and drippings in a small saucepan over low heat, straining the meat juices if needed for a clearer sauce. Cook over low heat for 5 to 10 minutes, or until the juices slightly reduce
Add the optional Worcestershire sauce or soy sauce and taste. Then add any further salt and black pepper to taste. Serve warm with French Dip sandwiches or poured over sliced Prime Rib
Red Wine Au Jus
Add the beef broth and red wine to the small saucepan, heating over low heat for 5 minutes while stirring to cook off the alcohol. Then add the meat drippings and cook an additional 5 to 10 minutes over low heat, or until slightly reduced
Taste the sauce and add salt and pepper as needed. Serve warm and refrigerate any leftover au jus sauce
Notes
If doubling the recipe, only add 3 cups of beef broth to ½ cup of roast drippings to ensure a rich sauce. Au jus will thicken slightly when stored, so consider refrigerating it overnight in a sealed container before reheating and serving it the next day for a more developed flavor and texture. Discard after three days.*Photo by Will licensed under CC BY-SA 2.0