Alfredo Sauce

The recipe I always use has flour in it. I think I will like this one better....

Alfredo Sauce
1/4 cup butter

1/2 cup heavy cream
1 cup fresh grated Parmesan cheese

Melt butter in a saucepan over medium heat. Add cream, slowly, and stir constantly until heated through. Add cheese a little at a time and stir constantly until completely melted. Remove from heat. Sauce will thicken as it cools.