Tenderloin and by-products are cooked with celery and chicken broth. Onions and carrots fry in the oil. To these was added, and the broth boils added meat, rice and potatoes. Then in a separate court bake the flour and put it in a ladle of broth soup and put in boiling soup. Boil until ready. Remove the fire and during that time prepare soup thickenerta by Beat yolks, add the milk and vinegar. Add to the soup trickle. Season with parsley and pepper.