New Light Turnip Greens

Pick over mustard greens and remove tough stems. Wash in cold water until no trace of sand remains. Set aside to drain. Heat olive oil in large Dutch oven or stockpot. Add onion and saute until almost browned, about 5 minutes. Stir in garlic and cook another minute, then add water. Bring to boil. Add greens and salt, cover and simmer over low heat 15 minutes to 2 hours, or until greens are of desired doneness. Add enough water during cooking as necessary to produce at least 1 cup cooking juices, known as pot likker. Serve with hot pepper vinegar on si