Published November 1, 2010. From Cook's Illustrated.
Cutting the carrots in our recipe into identically sized batons gave us evenly cooked results with the best browning. Precooking the carrots right on the baking sheet kept their moisture in and minimized withering. We buttered and seasoned the carrots, tightly covered the baking sheet with aluminum foil, and cooked them in a very hot oven. When the carrots were tender, we slid the uncovered baking sheet back into the oven and roasted them until the moisture had burned off and the roasted carrots took on nut-brown caramelized streaks.