A magnificent, beefy gravy with a rich flavor that can be served over prime rib, or even alone with potatoes.
Ingredients
Beef stock:
1 teaspoon butter for greasing pan
½ onion, unpeeled, sliced
½ cup roughly chopped carrots
½ cup roughly chopped celery
2 beef rib bones
4 cups beef bone broth or high quality, low-sodium beef broth
2 cups water
Gravy:
2 tablespoons unsalted butter
1 cup sliced brown mushroom (Optional)
2 tablespoons reserved beef fat
⅓ cup all-purpose flour
3 ½ cups reserved beef stock
1 teaspoon kosher salt, or to taste
Freshly ground black pepper to taste
Cayenne to taste
1 teaspoon balsamic vinegar
Directions