Whole Wheat Fettuccine With “Alfredo” Yogurt Sauce

I once ate true Fettuccine Alfredo at Ristorante D’Alfredo in Rome, where a giant picture of its namesake owner hangs on the wall. The big flavors of the dish were brought to bear by combining outsized amounts of butter and Parmigiano-Reggiano. It was that simple: butter and cheese. Not so simple, though, if you’re watching your waistline. This version eliminates the cream that many American versions call for but retains a little bit of the butter for flavor. The velvety-smooth texture is re-created with yogurt and thickened chicken broth. It may not be as authentic as the original, invented by Alfredo di Lelio, but it’s a very tasty version we can all live with (for a very long time).