Turkey and Sausage Gumbo

Name: Turkey and Sausage Gumbo
Ingredients: Reserved turkey bones and wings from roasted turkey; Kosher salt and freshly ground black pepper, to taste; 1 pound andouille sausage, sliced; 1 stick (8 tablespoons) unsalted butter; 1/2 cup vegetable oil; 1 1/2 cups all-purpose flour; 3 celery stalks, diced; 1 green bell pepper, diced; 1 large yellow onion, diced (or 2 small onions); Creole Seasoning, recipe follows; 3 bay leaves; 4 cups pulled turkey breast and dark meat, from turkey leftovers; 3 tablespoons hot sauce, preferably Crystal, or white vinegar if you don’t want it to be spicy, plus more to taste; Fish sauce, to taste; 2 cups chopped fresh or frozen okra; 2 cups cooked white long-grain rice; 3 green onions, thinly sliced; 1 tablespoon garlic powder; 1 tablespoon onion powder; 1 tablespoon paprika; 1 teaspoon ground white pepper or 1/2 teaspoon ground black pepper; 1 teaspoon kosher salt; 1/2 teaspoon cayenne pepper