Ingredients:

• 8 pounds boneless prime rib roast
• 1/2 tablespoon salt
• 12 tablespoons unsalted butter, softened
• 10 large cloves garlic, minced
• 1 shallot (slightly larger than a golf ball), minced
• 1 1/2 tablespoons dried thyme
• 1 1/2 tablespoons minced fresh rosemary
• 1 1/2 tablespoons ground pepper
• 1 1/2 teaspoons kosher salt
• 1 1/2 teaspoons lemon juice
• 1/2 cup all-purpose flour or cornstarch
• 1/2 cup fat prime rib roast drippings
• 4 cups beef stock or water
• 1/4 teaspoon Salt