Answer by  
                                                                                          technogeek (6640)
                                                            
                          
                          
                                                          You can use a mixture of butter, Parmesan cheese, heavy cream, and throw in a little garlic and parsley, and you have the ingredients for a pretty good Alfredo sauce. If you want it to be completely white, then you will have to do without the parsley, because that wil add green flakes.