Key Points Mastering authentic Fettuccine Alfredo lets you enjoy a comforting, classic Italian dish made with simple, everyday ingredients. Fettuccine Alfredo is one of many comforting pasta dishes that require just a few ingredients you may already have in your refrigerator. Martha's three-ingredient Fettuccine Alfredo stays true to tradition, swapping cream for butter and using a cooking method that creates a silky sauce in no time. Martha's Genius Alfredo Sauce TechniqueIt's common to prepare pasta sauce in a separate pan while the pasta cooks. For this recipe, though, Martha uses a stand mixer to create the silky Alfredo sauce.