I was trying to make a yummy cheese based pasta sauce. I cam across this one and tried it. It was fantastic: excellent flavor, but it was buttery smooth, thanks to fantastic directions. Unfortunately, I had to use cheeses that I had in the house, so I made some substitutions, but they still turned out great. I used parmesan, gorgonzola, mozzarella, and gruyere cheese. If you love alfredo type sauces, you must give this one a try!