Smoked Ham Biscuit Sandwich

Name: Smoked Ham Biscuit Sandwich
Ingredients: 1 cup brown sugar; 2 tablespoons paprika; 2 tablespoons black pepper; 1 teaspoon cayenne; One 12-pound wet-cured ham; 2 cups all-purpose flour; 2 1/2 teaspoons baking powder; 1/4 teaspoon baking soda; 1/2 teaspoon salt; 7 tablespoons cold unsalted butter, cut into small cubes; 3/4 cup cold buttermilk; 3 tablespoons honey; 2 cups honey; 5 to 6 chipotles in adobo, plus 2 tablespoons adobo sauce; Kosher salt and freshly cracked black pepper; 1 cup Dijon mustard