Peel and wash the carrots and cut them into thin strips of about 4 cm. Prick the sausage several times with a fork and heat in water. Boil up the vegetable stock. Cook the carrot strips for about 2 minutes.
Wash parsley and chervil, dab dry, pluck the leaves, chop them and stir into the soup. Season with salt, pepper and nutmeg. Cut the sausage into slices and add to the soup.