Bring a large pot of lightly salted water to a boil. Add pasta, and cook for 12-14 minutes or until al dente, and drain.
Combine heavy cream and butter in a Dutch oven or large, heavy saucepan over medium heat. Heat until butter melts, stirring occasionally; be careful not to bring mixture to a boil.
Stir in Parmesan cheese, parsley, salt, pepper and garlic powder. Toss with cooked pasta and serve immediately.
Notes
This Alfredo recipe is excellent with the addition of your favorite veggies (chopped asparagus or broccoli), or with chicken or shrimp. The sauce also works well as a base for white pizza.