Mr. B's Gumbo Ya-Ya

Ingredients

• 2 medium onions (1 quartered, 1 finely chopped)
• 3 stalks celery (2 halved, 1 finely chopped)
• 2 tbsp. black peppercorns
• 1 (3 1/2-lb.) whole chicken
• 2 medium carrots, halved
• 2 sprigs thyme
• 16 tbsp. unsalted butter
• 1 1⁄2 cups flour
• 1 each red and green bell pepper, minced
• 3 cloves garlic, finely chopped
• Kosher salt
• freshly ground black pepper
• 1 lb. andouille sausage, sliced
• 1 tbsp. Creole seasoning
• 1 tsp. cayenne pepper
• 1 tsp. dried thyme
• 1⁄2 tsp. crushed red chile flakes
• 3 bay leaves
• Cooked white rice