Hearty Fish Chowder

In 6- to 7-quart saucepot, cook bacon on medium 5 to 7 minutes or until browned and crisp, turning occasionally. Drain on paper towels; set aside. Discard all but 1 tablespoon bacon fat. While bacon cooks, in large microwave-safe bowl, combine carrot, celery root, potato, and 2 tablespoons water. Cover with vented plastic wrap and microwave on High 5 minutes or until vegetables are just tender. Keep saucepot with rendered bacon fat on medium. Add onion and cook 6 to 8 minutes or until tender, stirring occasionally. Add carrot mixture and cook 2 minutes, stirring. Add flour and cook 2 minutes, stirring. Add clam juice and water and whisk until smooth. Heat to boiling, stirring occasionally. Add cod chunks, cover, and cook 4 to 5 minutes or until fish just turns opaque throughout. Stir in milk, 1/4 teaspoon salt, and 1/8 teaspoon freshly ground black pepper. Cook 1 to 2 minutes or until hot but not boiling. Crumble reserved bacon. Spoon chowder into shallow bowls; garnish with parsley and bacon.