Garlic Herb-Crusted Prime Rib Roast Recipe

Ingredients (10)

• 1 three-rib prime rib roast, small end with ribs attached, at room temperature
• 2 tablespoons kosher salt
• Dash freshly ground pepper
• 6 cloves​ garlic (cut into 1/2-inch chunks)
• 1/2 cup chopped onion
• 2 tablespoons freshly grated​ horseradish
• 2 tablespoons fresh​ oregano leaves
• 2 tablespoons all-purpose flour
• 1/4 cup​ mayonnaise
• 1/2 cup dry red​ wine​