Beef Au Jus


  • 1/4 cup beef fat drippings from a prime rib or other roast beef (see footnote)
  • 1 1/2 tablespoons all-purpose flour
  • 2 cups beef broth
  • salt and ground black pepper to taste


  1. Melt fat in a skillet over medium-high heat. Whisk flour into beef fat; cook, whisking constantly, until the mixture thickens, about 3 minutes.
  2. Pour beef broth into fat mixture; increase heat to high and bring mixture to a boil.
  3. Boil mixture until it thickens slightly; season with salt and pepper to taste.

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