01 -  In a large saucepan, bring the chicken broth to a gentle boil over medium heat. 
 02 -  Add the rinsed rice. Reduce heat to a simmer and cook uncovered for about 20 minutes, or until rice is tender. 
 03 -  If using, add the shredded chicken to the pot and warm through for 2 to 3 minutes. 
 04 -  In a medium mixing bowl, vigorously whisk together the eggs and freshly squeezed lemon juice until frothy. 
 05 -  Slowly ladle 1 cup of hot broth into the egg-lemon mixture, whisking constantly to gradually increase the temperature. 
 06 -  Lower heat to low. Gradually stir the tempered egg-lemon mixture back into the soup pot, stirring gently to create a creamy texture. Do not allow the soup to boil after the eggs are added. 
 07 -  Season the soup with salt and black pepper. Serve immediately, garnished with chopped fresh dill or parsley.