Resist the urge to glaze from the start. Apply your brown sugar, honey, or maple glaze only during the last 30 to 45 minutes of cooking. This prevents the sugar from burning into a carbon crust before the ham is fully heated.
Cultural reference alert: The Southern US tradition of a bourbon-orange glaze is legendary, while Scandinavian hams often use a mustard-dill combo. For an 18-pound ham, double your glaze recipe—you’ll want extra to brush on every 10 minutes during that final stretch.
Pro move: mix your glaze with a tablespoon of Dijon mustard. It adds a tangy kick that cuts the sweetness and makes people ask, “What’s in this?” Keep it a secret. It’s your signature now.
The Resting Room
Once that probe hits your target, do not carve immediately. Let the ham rest under a loose foil tent for at least 15 to 20 minutes. This allows juices to redistribute so every slice stays moist, not a sad, dry pile.
During the rest, the internal temperature will rise about 5 to 10 degrees—a phenomenon called carryover cooking. So remember: pull it early, rest it well, and you’ll have a legendary centerpiece. While it rests, make your pan gravy with the drippings and a splash of the reserved glaze.
Fun fact: An 18-pound ham contains roughly 200 to 250 full slices of meat. That’s enough for a week of breakfast sandwiches, dinner omelets, and a legendary split pea soup that your grandmother would approve of.
