How Long Do I Cook a Precooked Ham?

Precooked hams can be heated by baking in a preheated 325 degree oven for 16 to 20 minutes per pound until a meat thermometer registers 135 degrees F.

Spiral sliced hams may be eaten cold, but may be easily warmed by following the instructions on the package. When a meat thermometer registers 140 degrees F, remove the ham from the oven and let it rest 10 minutes before serving.

To keep the ham from drying out when warming it in the oven, place it on a rack in a roasting pan and add water to the bottom of the pan, covering the entire thing tightly with foil.