Start by adding the cubed unsalted butter to a large bowl or frying pan.
Next, sprinkle half of the parmesan cheese over top of the butter.
Drop the fettuccine pasta in a large pot of boiling salted water. If you are using dry pasta this will take 7 to 8 minutes for it to reach al dente. When using fresh pasta, it will only take 90 seconds to two minutes for it to reach al dente.
Drain the pasta and add it to the bowl with the butter and parmesan cheese.
Add about ½ cup of hot pasta water to the bowl as well.
Begin tossing the pasta by slightly dipping the bowl down, sharply pushing it forward, then immediately bring it back. This will take some practice.
While tossing, being to sprinkle in the remaining parmesan cheese.
Season with salt and pepper.
Serve with additional parmesan cheese. Add optional garnish of chopped fresh flat-leaf Italian parsley.
