Discard glaze packet from ham. Place ham on a rack in a roasting pan.
Preheat oven to 275ºF (135ºC).
In a saucepan, bring pineapple juice, broth, sugar and vinegar to a boil. Reduce heat and simmer gently for 5 minutes. Whisk in mustard and hot pepper sauce.
In a small bowl, whisk together cornstarch and water. Whisk into saucepan and cook, whisking for about 1 minute or until thickened. Brush some of the pineapple glaze over ham and cover with foil. Bake for about 2 hours or until meat thermometer reaches a temperature of 140ºF. Uncover ham and brush with some more of the glaze.
Increase oven temperature to 425ºF (220ºC). Roast, uncovered for about 15 minutes and brush with glaze one more time. Let ham rest for about 15 minutes before carving.
Stir remaining glaze into pineapple with parsley and serve with ham.