In a separate shallow dish, whisk together the 1 ½ cups all-purpose flour, 2 tablespoons brown sugar, 1½ teaspoons kosher salt, 1 teaspoon chili powder, 1 teaspoon garlic powder, 1 teaspoon dried thyme, 1 teaspoon dried oregano, 1 teaspoon celery salt, ½ teaspoon cayenne pepper, ½ teaspoon smoked paprika, ½ teaspoon ground mustard, ½ teaspoon ground ginger, and ½ teaspoon ground black pepper.