It’s an autumn morning at Vogue House, and three editors are oohing and aahing—not over a couture dress or vertiginous stiletto—but a cookbook Ruth Rogers has just placed on a glass desk. Cut flush ...

When Ruth Rogers was invited to lunch at the Museum of Modern Art in New York for Ed Ruscha’s retrospective, she took the actor Austin Butler as her date. “It was kind of a bit daunting and fancy,” ...