Preheat oven to 350°. Line a large roasting pan with aluminum foil, and place a wire rack over foil.
Pour 2 cups water into bottom of roasting pan, and place ham, fat side up, on rack. Cover loosely with foil, and bake for 2 hours.
In a medium saucepan, bring orange juice and remaining 4 ingredients to a boil over medium-high heat. Reduce heat, and simmer for 10 minutes or until slightly thickened.
Remove ham from oven, uncover, and baste with orange juice mixture. Bake, uncovered, for 1 hour, basting every 15 minutes, or until a meat thermometer inserted in thickest portion registers 140°. Let stand for 10 minutes before serving. Garnish with kale, if desired.
Recipe by Paula Deen Magazine at https://pauladeenmagazine.com/citrus-mustard-glazed-ham-recipe/