Most visiting chefs making special appearances in New York kitchens hail from countries like Spain and France, and accordingly, bring foams and terrines aplenty. The Argentine chef Francis Mallman, however, will be packing one thing only with him later this month when he arrives for his guest chef stint at Bond Street restaurant Il Buco, and that one thing is Special Techniques in Advanced Patagonian Grilling. Hopefully, it clears customs. more ›