Melt the butter in a medium saucepan over low heat.
This will form the base of the sauce.
Gradually add the heavy cream to the melted butter, stirring continuously.
Allow the mixture to simmer for about 5 minutes.
Add the crushed garlic to the saucepan.
This will infuse the sauce with a rich garlic flavor.
Gradually stir in the grated Parmesan cheese.
Continue stirring until the cheese is fully melted and the sauce is smooth.
Season with salt and pepper to taste.
Your Alfredo sauce is now ready to be served over your favorite pasta.