how long to cook a 8 lb ham?

If it has been previously cooked it just needs to be heated. Use a meat thermometer and heat to 150 degrees. About an hour at 350.

If it is not a pre-cooked one. Roast the ham @ 500 for 20 minutes, then reduce the temp to 350. Brush the ham with glaze about every 45 minutes, until the center of the ham registers 145-150 degrees, about 2 1/4 hours.

Remove the ham from the oven, tent with foil, and let stand for about 40 minutes. The temp will rise to about 155 - 160. Carve, serve, and enjoy!

Most hams we get are fully cooked already so all that is needed is heating. you need to heat it about 15 minutes per pound.

15 minutes a pound, to reheat. So 2 hours at 325.

cook it until its internal temp is 150 degrees