Bring a large pot of salted water to a boil.
Add the fresh fettuccine and cook for about 4 minutes until tender yet firm.
Drain and set aside.
In a large skillet over low heat, melt the butter.
Add 2 cups of heavy cream and the lemon juice, stirring well.
Let it simmer for a couple of minutes.
Incorporate the grated Parmesan into the skillet, stirring continuously until the cheese melts completely.
This will thicken the sauce slightly.
Step 4:
Add the cooked fettuccine pasta into the sauce.
Toss it gently to ensure every strand is well-coated with the creamy mixture.
Finish with the remaining 0.5 cup of cream.
Sprinkle salt and white pepper to your taste, cooking briefly until the sauce is thick and luscious.