Asparagus by Brian Hunter• Cherry Blossom Festival: This weekend the Brooklyn Botanic Garden celebrates Japanese culture with over 60 events and performances. Look for a demonstration on making origami crane confections, ikebana classes, and samples of Japanese food and beverages. Admission is $8 for adults, $4 for children. • Ming Tsai and Marcus Samuelsson: Meet these celebrity chefs for a cooking demonstration. For reservations, call 800-292-2450. 6 p.m. on 5/3 at Macy's Herald Square. •An Appetite for Travel: Join an evening of food and feasting with Ruth Reichl and Calvin Trillin. 6 p.m on 5/30. Tickets are $21-$26.