This creamy and delicious cod and corn chowder is perfect for a cozy night in. Start by sautéing onions, celery, and garlic in a pot until they are soft and fragrant. Add diced potatoes, chicken broth, and corn 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.