Bring a large pot of water to boil. Salt generously, then add fettuccine and cook until al dente according to package directions.
In a separate saucepan over low heat, add butter and cream and stir until the butter is melted. Whisk in garlic, Italian seasoning, and salt and pepper.
Add in shredded parmesan cheese and cream cheese, then stir until completely combined.
Add pasta to the sauce and toss until coated, then serve immediately.
Garnish with chopped parsley and extra parmesan cheese, if desired.
Notes
We’ve found that using freshly grated parmesan has the best results for a smooth, creamy alfredo sauce.