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Typically this is about 18 minutes per pound but Iâll sometimes pull mine out about 20 minutes before that since it will stay warm in the tinfoil (and even room temperature ham is MUCH better than dry)! Most directions for cooking a spiral sliced ham tell you to reheat your ham at 275F and I agree with this method.
To serve again, place the ham in your refrigerator for 24-48 hours ahead of time to thaw. Heating a HoneyBaked spiral ham. Your ham is already fully-cooked and ready to enjoy, and is best served directly from the refrigerator. If heating is desired, we recommend heating only those slices you plan to use and not the entire ham. However, you can wrap individual spiral slices in aluminum foil and heat them. If using a conventional oven, cover the entire ham (or portion to be used) and heat at 275 degrees F for about 10 minutes per pound. Place a shallow pan with water on the rack below the ham for additional moisture. Slices can also be heated in a skillet or used in grilled sandwiches, like our Grown-Up Grilled Ham & Cheese.