Preheat oven to 325 degrees F. Spray a baking dish or shallow roasting pan with nonstick cooking spray and place ham inside.

In a small bowl, whisk together brown sugar, ground mustard, cloves and apricot preserves. Brush glaze over the surface of the ham.

Bake, uncovered, for 1 hour, or until ham is heated through. Cut into slices and serve.