Grilled Holiday Honey Ham

INGREDIENTS

• 1 (12 to 14-pound) fully-cooked, bone-in ham, preferably shank-end
• 1 tablespoon freshly ground black pepper
• 1 teaspoon mustard powder
• 3 tablespoons chopped fresh thyme leaves
• 1 stick (1/2 cup) butter
• 2 tablespoons light brown sugar
• 1/4 cup apple cider vinegar
• 1 teaspoon ground cinnamon
• 1 tablespoon kosher salt
• 3/4 cup honey
• 2 teaspoons ground cumin
• 2 teaspoons ground ginger