Prepare your roasting pan by coating it with aluminium foil. Put the bone-in ham on a rack in the pan after that.

Make a shallow 1/2 inch-deep diamond pattern on the ham's surface. By scoring it, you may help the meat absorb the glaze, which is the main ingredient.

2 teaspoons of rum should be brushed over the scored ham before baking for 2 hours at 325 degrees, uncovered.

Simply mix and spoon is all that's required! Add the remaining ingredients, including the rum, to a small bowl. Remove the ham from the oven after it has roasted for two hours, then drizzle the glaze on top.

The ham should be put back in the oven and baked for an additional 30 minutes.