This hearty and comforting cod chowder is perfect for a chilly evening. Start by sautéing onions, celery, and garlic in a pot until they are soft and fragrant. Add diced potatoes, chicken broth, and milk to the pot and simmer until the potatoes are tender. Add chunks of cod to the pot and cook until the fish is opaque and cooked through. Serve with a sprinkle of fresh parsley and a side of crusty bread for dipping.