As we approach the Oscars, I propose a new category of Lifetime Achievement Award: “Best Actor & Cookbook Author.” The recipient would be an award-winning star of motion pictures as well as a best-selling cookbook author with James Beard honors. And, naturally, she or he would be a host of popular cooking shows. And the winner is: Madhur Jaffrey. I had no inkling of Jaffrey’s double life when my friend Wendy gave me her authoritative Indian Cooking cookbook 30 years ago. I had never even heard of her. But Wendy was a fan. She had just come back from living in Amsterdam, where she had watched Jaffrey’s BBC cooking show, and had picked up…