Asparagus with Mousseline Sauce

The first time I ate asparagus the correct way was as a student in Paris in the 1960s. Whenever I had lunch with Renée and her husband, Camille Dreyfus, a doctor who was the physician to Charles de Gaulle, I was confronted with the complexities of elegant French dining. Luckily, their butler, probably having pity on me, helped me navigate the many knives and forks, finger bowls, doilies, etc. Because a huge flower arrangement usually sat at the center of their round table, I couldn’t see how the Dreyfuses ate . . . and, fortunately for me, they couldn’t see how I ate. Once, during the asparagus season, the butler served me white-asparagus spears, which I ate with my fork, cutting them as daintily as I could. To my surprise, Dr. and Madame Dreyfus, the most proper people I knew in Paris, gingerly ate the spears, one by one, with their fingers. They then washed their hands in the finger bowls. Years later, I ate dinner in Strasbourg at the home of Pierre and Martine Bloch at the start of the local asparagus season. The minute I entered their apartment, I could smell the asparagus being steamed in the kitchen. Then Martine shared her trick for cooking white asparagus: put a little sugar in the water, to bring out the flavor.