Preheat oven to 350 degrees.

Place ham in a shallow roasting pan or baking dish. 

In a saucepan over medium heat combine the brown sugar, dijon mustard, and apricot preserves.

Stir until combined.

Continue to stir over medium heat until the mixture comes to a bubble.  Let simmer for 2-3 minutes.

Spoon half of the glaze over the ham.

Bake, uncovered, at 350 for 1 hour.

Spoon the remaining glaze over the ham and bake another 15-30 minutes longer or until a thermometer reads 140° and the ham is heated through.

Serve!