I did a lazy version of this recipe. No vegetables or pre-roasted garlic, just the stock, some sliced fresh garlic and 1/2 tsp chipotle powder (I can't find whole ones) under the roasting rack. The reduction it produced was just devine. My bison roast (2lbs) was frozen solid when it went in (can you tell I was in a rush?) so I cooked it for 3 hours and it came out beautifully medium rare. I will definitely use this one again, probably for beef too. Thank you.