Prime Rib with Horseradish Cream Sauce

Ingredients

• Prime Rib

  • 1 tbsp table salt
  • 2 tsp ground white pepper
  • 1 bone-in prime rib roast, about 6 1/2 lb (3 kg) (about 3 ribs)
  • 1 piece pork fat, about a 12-inch (30 cm) square (see note)
  • 2 tsp fleur de sel
  • 2 onions, peeled and halved
  • 1 whole garlic bulb
  • 1 tsp (5 ml) olive oil
  • 1 1/2 cups (375 ml) red wine
  • 2 cups (500 ml) beef broth

• Horseradish Cream Sauce

  • 1/4 cup (60 ml) 35% heavy cream
  • 2 tbsp (30 ml) prepared horseradish