Here’s the golden rule, and I want you to tattoo it on your brain: 10 to 14 minutes per pound at 325°F (163°C). That’s it. That’s the math. If your ham is 5 pounds, you’re looking at about 50 to 70 minutes. If it’s a 10-pound beast, it’s around 1 hour 40 minutes to 2 hours and 20 minutes.
But wait—don’t just set a timer and ghost it. You need to check the internal temperature. The USDA says you want it to reach 140°F (60°C)—and that’s just for warming through. Remember, it’s already safe. You’re just making it lobster-level-warm.
Spiral-Cut Ham: The Sneaky One
Spiral-cut hams are the handsome devils of the ham world. They’re pre-sliced, which is awesome for serving, but they dry out faster if you’re not careful. For these, aim for 10 minutes per pound at 325°F. Cover them tightly with foil to trap steam, and only glaze them in the last 20 minutes. Pro tip: Don’t let the slices separate—they’ll dry out like a desert sidewalk.
Bone-In vs. Boneless: Does It Matter?
It does, but only a little. Bone-in hams are bigger and usually take longer per pound. Boneless hams are more compact and heat up faster. Both are delicious, but bone-in wins for drama. You get to say “Look at this magnificent bone” at the dinner table. That’s worth an extra 10 minutes.
