<P>200 recipes--from appetizers to desserts--for this nutritious and increasingly popular vegetable.<P>Potatoes are the world's best food. You can boil them, bake them, fry them, sauté them, grill, braise, roast, and microwave them. Potatoes are irresistible, and Lydie Marshall's recipes for them are sublime. The book is an international compendium of tempting and varied dishes by one of America's most talented cooks.