To bake a spiral ham, preheat your oven to 325°F and plan to cook the ham for about 12 to 15 minutes per pound. The goal is to heat the ham through until it reaches an internal temperature of 140°F, which usually takes around 90 minutes for a 7-10 pound ham

. Detailed steps:

• Remove any plastic disk from the ham's bone and place the ham cut-side down in a roasting pan.
• Cover the ham tightly with foil to retain moisture.
• Bake for 12-15 minutes per pound at 325°F until the internal temperature reaches 140°F, using a meat thermometer for accuracy

• If applying a glaze, remove the foil during the last 15-20 minutes of baking, baste the ham with the glaze, and bake uncovered to allow caramelization and browning

• After baking, let the ham rest covered for about 15 minutes before slicing to allow juices to redistribute

For example, a 10-pound spiral ham would take approximately 2 to 2.5 hours to bake

. This method ensures the ham is heated properly without drying out, with the option to add glaze toward the end for flavor and a nice finish