Food & Cooking Recipes Soups, Stews & Stocks Soup Recipes Vichyssoise with Cauliflower and Buttermilk Be the first to rate & review! By Martha Stewart Test Kitchen Martha Stewart Test Kitchen The recipes developed by our test kitchen team have undergone a rigorous process of development and testing, ensuring that every element is optimal, from ingredient amounts to method and cooking time. This process includes triple-testing recipes to ensure they meet our high standards. The many stellar cooks and food editors who have been part of our team include Sarah Carey, Lucinda Scala Quinn, Jennifer Aaronson, Shira Bocar, Anna Kovel, Greg Lofts, Riley Wofford, Lauren Tyrell, and Lindsay Leopold. Editorial Guidelines Updated on May 16, 2017 Print Rate It Share Share Tweet Pin Email Servings: 6 Yield: 7 cups Cauliflower enhances our version of this classic soup, traditionally made with just potatoes and leeks. Ingredients ¼ cup (½ stick) unsalted butter 5 leeks, white and pale-green parts only, thinly sliced and rinsed well (about 3 cups) 1 white potato (about 4 ounces), peeled and cut into 1-inch pieces Freshly ground white pepper Large pinch nutmeg 1 small head cauliflower, cut into florets (about 4 cups) Coarse salt 3 ½ cups homemade or low-sodium store-bought chicken stock 1 cup low-fat buttermilk Directions Melt butter in a medium saucepan over medium heat. Add leeks, and cook, stirring occasionally, 5 minutes. Add potato, 1/8 teaspoon pepper, and the nutmeg, and cook, stirring, 1 minute. Stir in cauliflower, 1/4 teaspoon salt, and 3 cups stock. Simmer, partially covered, until cauliflower has softened, 12 to 15 minutes. Using a slotted spoon, remove 2 florets, and transfer to a cutting board; thinly slice lengthwise. Set aside for garnish. Working in batches, puree vegetable mixture in a blender, filling no more than halfway each time. Return to pan. Stir in buttermilk and remaining 1/2 cup stock. Sprinkle with 1/2 teaspoon salt, and season with pepper. Serve hot or cold, garnished with cauliflower slices. Rate it Print