Roast for 15 minutes and then reduce the heat to 350 degrees.

Place in oven, and immediately reduce heat to 300 degrees.

Reduce the heat to 375 degrees and continue to cook for 20 to 25 minutes.

Reduce the heat to 350 degrees and continue baking for 20 minutes.

Cover with foil and reduce the heat to 350 degrees.

As of 2010, this has been reduced to approximately 4 degrees.

Reduce heat to 300 degrees and cook 30 to 50 minutes longer, depending on the size.

Roast for 45 minutes, then reduce heat to 325 degrees.

Reduce heat to 250 degrees and bake 30 minutes longer.

Bake for 15 minutes, then reduce heat to 350 degrees.