INGREDIENTS
1
3-rib standing rib roast (7 to 8 pounds)
1 tbsp
kosher salt
1 1/2 tsp
freshly ground black pepper
Mustard Horseradish Sauce, recipe follows
1 1/2 cups
good mayonnaise
3 tbsp
Dijon mustard
1 1/2 tbsp
whole-grain mustard
1 tbsp
prepared horseradish
1/3 cup
sour cream
1/4 tsp
kosher salt