Fettuccine Alfredo

Directions

1. 1
   Preheat oven to 250F.
2. 2
   Melt butter in a heatproof serving bowl in middle of oven, about 5 minutes.
3. 3
   Cook fettuccine in a 6- to 8-quart pot of boiling salted water until al dente.
4. 4
   Reserve 1/2 cup pasta cooking water, then drain fettuccine in a colander.
5. 5
   Immediately toss fettuccine with butter and salt in bowl, then slowly add 3/4 cup cheese, tossing constantly and adding enough of cooking water to keep pasta moist.
6. 6
   Season with salt and pepper to taste, then sprinkle with remaining cheese.