Cook pasta according to directions on package. Drain and set aside.
In a medium saucepan over low heat, heat cream and butter, stirring
constantly. When cream begins to simmer mix in a small amounts of Parmesan
cheese, stirring constantly, until all cheese is added, and sauce has
reduced. It should be thick and easily cover the back of a spoon.
Stir in nutmeg and black pepper. Toss with warm fettuccini and serve.