I don't make spiral cut ham very often but when I do I always use my own recipe for the glaze. There are two ways to use this glaze.
1. Use half the glaze on the ham. Cook. Use remaining glaze.
2. Cook the ham then use entire glaze.
Personally, I like to leave the glaze until the end. When I leave the glaze for last I combine the brown sugar, apricot jam and 5 tablespoons water in a small stock pot. 5 minutes before I serve the ham:
Bring to a boil and continue to stir. Let simmer until ready to serve. Take off heat and spoon onto sliced ham.
Ham with Apricot Brown Sugar Glaze
1 (10 pound) fully-cooked spiral cut ham
2/3 cup brown sugar
1/3 cup apricot jam
Preheat the oven to 325 degrees F.
Place the ham cut side down onto a sheet of aluminum foil. Mix together the brown sugar, and in a small bowl. Brush onto the ham using a pastry or barbeque brush. Reserve any leftover glaze.
Enclose the foil around the ham and place in a roasting pan.