From the Olympia Restaurant cheeseburgers to Timberlake’s tofu, SNL’s food and drink sketches have fed the nation’s funny bone for half a century. Since 1975, SNL has been an evolving portrait of the country’s obsessions and anxieties, refracted through late-night irreverence and some of the sharpest writers in television. The show’s 50th anniversary broadcast in February drew nearly 15 million viewers, making it NBC’s biggest prime-time entertainment event in years. When SNL takes on food, it r