Longtime food writer Elaine Corn will dish about her own culinary and cultural journey as the kickoff speaker of the Confucius Institute’s new lecture series on Saturday at 2 p.m. Her talk, “Bagel to Bao,” about her fascination with Chinese cooking, is being held at the International Center, located at 463 California Ave., a few blocks north of UC Davis. “Everybody thinks it’s on campus,” Corn says, adding most emphatically, “Well, it’s not!” (Admission’s free but you’re advised…