Prepare the pasta according to the package directions. While the pasta is cooking, melt the butter into the heavy cream in a medium saucepan. Stir in 1 cup of the Parmesan and cook over low to medium heat until the cheese melts. When the pasta is done, drain it and pour into a bowl.
Add the cheese sauce. Combine the sauce and pasta. If you like, you can season it with some salt and white pepper. Sprinkle with the remaining Parmesan cheese when serving. Mixing the sauce with the pasta is an Italian way to serve up this particular dish. It coats the pasta well, and gives you a delicious bit of sauce in every bite. You do not need to rinse your pasta. Following these directions you can make delicious Alfredo sauce at home.