Me and Al, we go way back. However, Al is...ahem...a bit fattening, making it something I don't indulge in all the time. The problem though, I love Alfredo sauce; the creaminess, the richness, it's just good comfort food.
So I did a little a searching for a lighter Alfredo sauce (don't laugh) and came across one developed by Lidia Matticchio Bastianich. She is widely regarded as the first lady of Italian cuisine, an acclaimed chef and restaurateur. She of course has a fabulous fettuccine Alfredo recipe with all the heavy cream and egg yolks you could want. However, she does explain how to make a lighter Alfredo sauce, one that can be indulged in more often.
The key to a great Alfredo is organization and timing and of course cooking the pasta properly.
Pasta needs lots of water, for 1/2 pound of pasta, as in this recipe, you need 3 quarts of water. And don't ever add oil to the water, it makes your sauce slip right off. For maximum flavor, add the pasta directly from the boiling water to the cooking sauce and simmer together for a few minutes. The pasta will absorb some of the sauce and will intensify in flavor.