Step 3) Heat the oil in a large Dutch oven or deep sided roasting pan over medium-high heat. Brown meat for 3 to 5 minutes on each side or until well browned. Remove roast to a plate. Add onions to pan juices and cook for 2 minutes. Stir in pomegranate juice and half of the cranberries; bring to a boil and boil for 1 minute. Stir in brown sugar, Worcestershire sauce and balsamic vinegar, stirring until sugar is dissolved.