This recipe is much lighter than most alfredo sauces. You won't find a whole stick of butter or a whole brick of cream cheese in this recipe (not that there is anything wrong with that!). The small amount of heavy cream, butter, milk, and cream cheese blend together wonderfully to make a thick yet still creamy sauce. The cheese and garlic give it rich flavor. We ate this pasta dish with chicken parmesan the first time and had leftovers with plain cooked chicken. Both times it was delicious!