Wash the chicken filet and dab dry. Bring the stock to the boil, add the meat and cook on a low heat for 15-20 minutes. Leave to cool in the broth. In the meantime, clean and wash the celery and put the green aside. Cut the celery stalks into slices. Clean, wash and quarter the salad and cut into wide strips. Drain the mandarins.
Chop green pepper. Mix mayonnaise with 4 tablespoons chicken stock, yoghurt, curry and green pepper. Season with salt, pepper and sugar. Cut the chicken filet into slices. Mix with celery, mandarins and salad dressing. Arrange on romaine salad, garnish with celery green