Bake your spiral ham at 250℉ for 15 minutes per pound, uncovered for the first half and covered for the second, for best results.
Place ham on a baking dish.
Heat for 1.5 to 2 hours. See the chart above for how long to heat your ham. Cover ham snugly with foil. Bake until the internal temperature with an instant-read thermometer reaches 140F.
Open foil or bag and roll down to expose ham.
Pour the glaze over the ham and in between the spiral slices.
Bake until glaze sets, about 10 minutes.
Remove the ham from the oven and baste the ham with the glaze and drippings in the bottom of the pan. Allow to rest for 10 minutes before serving.
*Before serving, I like to drizzle the reserved glaze over the ham, but you can set it on the table for everyone to glaze each serving if desired.
GLAZE:
Place brown sugar, maple syrup, and remaining glaze ingredients in a saucepan.
Heat on medium-low until sugar dissolves.
Remove glaze from heat.
*Remove 1/2 cup of glaze and set aside (for basting at the end).