That's a very easy one, as are all cream pasta's..Nothing but Half & Half, some butter, seasonings, noodles, and whatever else you want to toss in the pot. Add some finely grated parmesan after the half & half comes to a hard boil to thicken and that's it. Add just enough to parm to thicken slightly, or it will turn into concrete or get lumpy when it cools. Fettucine Alfredo, Pasta Con Broccolli, Rigatoni Carbonara...They are all pretty much the same base with different noodles and ingredients. Con Brocolli gets a dash of marinara in the pot to turn the half & half pink.