I have experimented for a long time trying to come up with a baked ham which is flavorful, delicious. This is what I finally came up with. I make this for every holiday and my family can't get enough. I have also offered this when I catered. It was a big hit at my son's wedding.

1 (6 pound) boneless cooked ham ( half of a ham)
1 cup light brown sugar
1/4 cup pure maple syrup (the real thing will only do)
1/4 cup prepared Dijon mustard ( I use grey poupon or
    Jack Daniel's Dijon mustard which is excellent for flavor)

Preheat your oven to 325 degrees F.

With a sharp knife score the ham with diagonal lines about 1/8- to 1/4-inch deep into the fat to achieve a diamond pattern.

Place the ham fat side up in a shallow roasting pan and bake 30 minutes.

Combine together brown sugar, maple syrup and mustard whisking until well combined. Brush the ham with the mixture and return to oven.

Bake an additional 30 minutes and then brush with again with remaining sugar mixture. Continue to bake for approximately 15 to 20 minutes longer or until a meat thermometer reaches 140