In a medium sauce pan, add the brown sugar, orange marmalade, coke & mustard.
Warm the mixture on medium-low to medium heat until the sugar melts.
Let mixture slightly cool for about 5-10 minutes, you do not want it too liquidy.
Place the ham on a aluminum foil-lined ,semi deep baking sheet.
Coat the ham evenly with the mixture.
Bake for about 2- 2 1/2 hours, basting every 30 minutes
ENJOY!