Pancetta Carbonara

4 slices bacon, chopped
4 slices pancetta, chopped
2 cups whipping cream
1 1/2 cups freshly grated Parmesan
6 large egg yolks
18 ounces fresh fettuccine
Salt and freshly ground black pepper
2 tablespoons chopped fresh chives

Saute the bacon and pancetta in a heavy large frying pan over medium heat until almost crisp, about 7 minutes. Cool. Whisk in the cream, cheese, and yolks to blend.
Meanwhile, bring a large pot of salted water to a boil over high heat. Drain. Add the fettuccine to the cream mixture and toss over medium-low heat until the sauce coats the pasta thickly, about 5 minutes (do not boil). Season the pasta, to taste, with salt and pepper. Transfer the pasta to a large wide serving bowl. Sprinkle with chives and serve.