To cook a spiral ham, which is typically pre-cooked and just needs to be heated through, follow these guidelines:

• Preheat your oven to 325°F.
• Place the ham cut side down in a roasting pan.
• Cover the ham tightly with foil.
• Bake for about 12 to 15 minutes per pound, or until the internal temperature reaches 140°F. For example, a 10-pound ham will take approximately 1 hour and 30 minutes to 2 hours

• If you want to glaze the ham, apply the glaze during the last 15 to 20 minutes of cooking after removing the foil, then bake uncovered to allow the glaze to caramelize

• Let the ham rest covered for at least 15 minutes after removing it from the oven to allow juices to redistribute

Cooking times can vary slightly based on the shape of the ham and whether it is covered or uncovered during cooking. Using a meat thermometer is recommended to avoid overcooking and drying out the ham

. In summary, plan for about 12-15 minutes per pound at 325°F, aiming for an internal temperature of 140°F, with glazing applied near the end of cooking.