Heat ham in oven according to package directions*, about 15-18 minutes per pound in a 350 degree F oven.
In small bowl, stir together preserves and mustard. Brush over sides of ham during last 15-20 minutes of heating.
Slice enough ham to serve; wrap and refrigerate leftovers for up to 3 days.
Nutrition facts per 3-ounce serving.
*Crock-pot tip: Heat small boneless ham in slow cooker, with 1/4 cup water, on low setting, for 5-6 hours.