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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.
A spiral, glazed ham is a popular choice for Easter, and there is little-to-no preparation other than heat, glaze, and eat. According to Food Network, allow about 10 to 18 minutes per pound cooking time in a 325 degree oven, or until the internal temperature of the ham reaches 145 degrees.ccording to Food Network, allow about 10 to 18 minutes per pound cooking time in a 325 degree oven, or until the internal temperature of the ham reaches 145 degrees.