Have an 18qt Rival electric roaster and would like to heat a bone in, fully cooked spiral ham. How long and at what temp. The ham is almost 11#.
You could heat it on low power in the microwave at about 50% power for about 10 minutes, let it sit for a few minutes, check the temp around the bone, and do it again for another 2 minutes at a time until it gets to whatever temp you prefer. If you do use the roaster, put a cup of water in the pan, cover the ham, and heat at about 300 for about 30 minutes. If you want a little variety, instead of water you could pour a cup of Coke or pineapple juice over the ham, then cover and heat as noted above.
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