Voluptuous outdoor feasts for diners with plenty of leisure to prepare in advance and the very best in backpacks and leakproof containers for transport. The picnics here are for every season, with some nice hot soups in a thermos for winter outings and chilled fruit soups for summer strolls. Also: homemade ice cream, deluxe patÃ‰s, dips for fresh vegetables, and fancy pastries. The recipes are vaguely international, and decidedly rich. They are also, of course, ideal for home buffets, brunches, and even dinner parties for those who haven't the time to hike to a fresh mountain stream.