A smoked ham is the cured leg of pork that is hung in a smokehouse, where the smoke slows down the rancidity process of the meat and adds flavor, notes the U.S. Department of Agriculture Food Safety and Inspection Service. You can buy precooked smoked hams at your local super market or at a specialty meat store if you want to skip the process of cooking it yourself. According to LIVESTRONG.COM MyPlate, a slice of precooked smoked ham contains 5 g of protein plus 1 g each of fat and carbohydrates and provides 30 calories.
Preheat your oven to 350 degrees Fahrenheit before you begin so it will be ready once you finish your preparation work. Adjust your oven rack to be in the middle of your oven with no racks above it so your ham fits nicely.
Place your precooked smoked ham in an oven-safe glass or ceramic baking dish big enough for your piece of meat.
Add 1 to 2 inches of water to your baking dish to prevent the ham from getting burned in the oven.
Glaze the ham to give it flavor. There are many ways to glaze a precooked smoked ham. Some ideas include mixing brown sugar and crushed pineapple with its juice and pouring this on top or mixing equal parts honey and water and doing the same. You can also use a cooking brush to brush your glaze over your ham if you want only a thin layer over it.
Cover your precooked smoked ham with tin foil, wrapping the foil to the edges of your baking dish. If your baking dish doesn't have edges, make the sheet of tin foil big enough to wrap over the ham and under the baking dish so it remains tightly sealed during the heating process.
Place the covered ham in the oven and heat it for 10 minutes per pound of ham. This is an estimate, and your ham may take longer depending on your oven. Open the tin foil covering and cut into the meat to make sure it is heated all the way to the center, once your timer is done.
Remove the ham from the oven and keep the foil covering intact until you are ready to serve so the meat remains hot.