Good Questions. Pin it. Q: I'm a surgical resident and I'm frequently on call at the hospital with little time to spare in between cases, so I rarely get to sit down to eat dinner (even a quick one!). The only fridge is nowhere near the ORs, plus there isn't usually time to run down and heat up food to eat.
2 1/2 hours. Here's how: Preheat the oven to 325, place the ham on a rack in a baking dish with a little water in the bottom. Wrap in foil, bake for about 2 hours, or until th â¦ e internal temperature is 135 - 140 degrees.5 minutes per pound at 350 degrees. So, for a 7 lb. ham you are looking at just over an hour. If you aren't sure, cut a small slit on the largest part of the ham and feel if it's warmed through. Bone-in hams cook faster.
Bake in a 325 F oven, allowing about 21 minutes per pound for a large ham, about 25 minutes per pound for a smaller (up to 12 pounds) ham or half ham. If the ham has an exposed bone, cover this with foil. Keep an eye on the ham as it cooks and spray occasionally with olive oil during the first part of the cooking.