Asparagus Salad

Cut the tender parts of asparagus into pieces of equal length and tie them in bunches, then cook them in salted water and leave them to get cold. A few minutes before serving mix them in a bowl with a third of their quantity of pared crawfish tails; season with salt and pepper. Rub through a sieve the yolks of six hard-boiled eggs, dilute this with oil and vinegar, and pour over this sauce the asparagus and crawfish, then arrange the salad symmetrically in a salad bowl and add the seasoning to it.