Spicy Slow Cooker Gumbo

Name: Spicy Slow Cooker Gumbo
Ingredients: 8 Tbs. (4 fl. oz./125 ml) olive oil; 1 1/2 lb. (750 g) boneless, skinless chicken thighs; 6 Tbs. (2 oz./60 g) all-purpose flour; 1 large yellow onion, diced; 1 green bell pepper, seeded and diced; 3 garlic cloves, minced; 1/2 lb. (250 g) fresh or frozen okra; 1 can (14 oz./440 g) diced tomatoes, drained; 5 cups (40 fl. oz./1.25 l) chicken stock; 2 bay leaves; 1 Tbs. sweet paprika; 1 tsp. dried oregano; 2 Tbs. chili powder; 1/2 tsp. cayenne pepper; 1 tsp. dried thyme; Kosher and freshly ground black pepper; 1/2 lb. (250 g) andouille sausage, cut into 1-inch (12-mm) slices; 1 lb. (500 g) large shrimp, peeled and deveined; Cooked white rice for serving; 2 Tbs. chopped fresh flat-leaf parsley; Hot sauce such as Tabasco for serving