Description
Avocado pureed with buttermilk (low-fat) and yogurt (with the cream on top) yields a pale green soup laced with masses of minced herbs, textured with cucumber, and garnished with slivered radishes, herbs, and green pistachios. All in all, it's a fine soup for a hot day, and although the recipe makes just a scant quart, it will be enough for four or more servings.