Crème d’Asperges, otherwise Argenteuil

Crème d’Asperges, dite Argenteuil (cream of asparagus soup), teaches the discipline of a crème: cook the vegetable tender in its sauce foundation, sieve it, then loosen it only as far as elegance requires. The one true thing to know before touching a pan is this: asparagus fibers do not blend themselves into silk. They must be passed through a fine sieve.

The original entry assumed a saucier with Béchamel ready, a stockpot holding white consommé, and another pair of hands to rub the asparagus through a tammy. At home, those sauces remain finished components because the recipe treats them that way, but an immersion blender removes the brigade labor and a fine-mesh sieve replaces the tammy. Hand-rubbing every stalk through cloth was scaffolding for many hands. Removing every coarse fiber is the dish and stays. The open-ended quantity of consommé becomes a measured range and a clear yield, about two quarts for eight first courses. One cook, one stove, one evening.

Finished properly, Argenteuil is warm ivory, gently glossy from its Béchamel and final cream, with white asparagus heads and green chervil pluches marking what lies beneath. Pass the soup while it is warm and press patiently. That sieve, not extra cream, gives the crème its satin body.