Toss the carrots, the leeks and onions in the oil. Season with salt and pepper. Put the vegetables around the roast and add the chicken broth. Continue roasting for 1 hour 10 minutes or until the thermometer reads 129 °F (54 °C) for a rare roast, or 145 °F (63 °C) for a medium roast. Set the roast aside on a plate. Cover the roast with aluminium foil and let stand for 15 minutes.
Béarnaise
-