Sous Vide Stracciatella Soup

Ingredients

• 1 (4-pound) whole chicken, trussed
• 6 cups water
• 2 cups diced carrots
• 2 cups diced celery
• 2 cups diced white onion
• Kosher salt and freshly ground black pepper
• 1/2 cup grated Parmesan cheese
• 4 large eggs, beaten
• 1/4 cup thinly sliced scallion
• 2 tablespoons freshly squeezed lemon juice
• 2 tablespoons minced fresh parsley
• 2 cups baby spinach