Romaine Lettuce Salad with Cilantro Dressing

I received this recipe from the elegant Lolita Fuster de Isla, the eighty-five-year-old grande dame of fine cooking in San Andrés Tuxtla. I spent a lovely afternoon listening to her recollections of living and cooking at La Isla, the ranch where she and her husband raised cattle and grew pineapples for many years. In Mexico, to serve a green salad like this marks a cook as having sophisticated, cosmopolitan taste.