Things You'll Need
If your Hormel bone-in ham is spiral sliced, it is pre-cooked so it has rendered most of the juices that make it salty. Line your pan with aluminum foil to make cleaning up simpler and take your ham out of the refrigerator about one or two hours before you cook it. It's a temptation to baste the ham with its own juices while it is cooking. That's a bad idea because they are likely to make your ham briny.
Preheat your oven at 325 degrees. When it has reached that temperature, place your ham into it and cook it about 12 minutes per pound. If you use a meal thermometer, it should reach 140 degrees before you take the ham out of the oven.
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Glaze your ham. Most likely, your Hormel bone-in spiral sliced ham came with a packet of ingredients with which to make a glaze. Empty the packet into a sauce pan and add a tablespoon of water. Cook it on medium heat until the ingredients have melted and a paste has been created.
Use a pastry brush to slather the entire ham with the glaze. Then return the ham to the oven, uncovered, for about 20 minutes.
Let the ham rest for about 20 minutes. Take out the meat thermometer and put aluminum foil around the ham to keep the internal temperature above 130 degrees.