2 red onions, peeled and wedged
6 gloves garlic, peeled and divided
3 tbsp olive oil, divided
1 boneless beef rib roast (7 lbs)
1 tbsp each Dijon mustard, honey chopped rosemary and thyme
1 cup of red wine
1 tbsp balsamic vinegar
Heat oven to 350 degrees. In bowl, toss onions, 4 gloves of garlic, and 2 tbsp oil. Chop remaining garlic. In bowl, combine next 4 ingredients, chopped garlic and remaining oil, spread evenly over beef. Place beef on rack set in roasting pan.
Roast 1 hr and 30 mins or until thermometer reads 145 degrees adding onions and garlic after 45 mins. transfer to platter when done.
Remove rack from pan being sure to include all. Add wine and vinegar while stirring. Cook for about 5 mins or until reduced to 3/4 cup; serve with beef.