This recipe originally appeared on the Rachael Ray Show. For more recipes and videos from the show visit RachaelRayShow.com .
- 3 tablespoons extra-virgin olive oil ( EVOO )
- 1/3 pound meaty guanciale or pancetta, diced
- 2 leeks, quartered lengthwise, rinsed and dried, thinly sliced
- 1 bulb green garlic, stalk removed and cloves peeled, or 4 cloves, thinly sliced or chopped
- 1 teaspoon black pepper
- ½ cup white wine
- ½ cup flat-leaf parsley, finely chopped
- 1 pound bucatini
- 6 egg yolks
- ½ cup each freshly grated Parmigiano-Reggiano and Pecorino Romano cheese, plus more to pass at table
- 1 tablespoon lemon zest and juice of 1 small lemon
Heat a large pot  of water to a boil for pasta.
Heat a large skillet  over medium heat with EVOO , 3 turns of the pan , add guanciale or pancetta and render 2-3 minutes. Add leeks and garlic and season with pepper, stir 3-5 minutes. Add wine to pan  and let it absorb, turn heat down to low, and add parsley.
Season pasta water liberally with salt and cook pasta 1-2 minutes less than package directions.
Whisk  up egg yolks, cheeses, and zest and juice of 1 lemon.
Just before draining pasta, add a mug (about 1 1/4 cups) of boiling salted water to egg yolks while whisking. Drain pasta or transfer with spider to leeks in skillet, pour eggs over, turn off heat, and toss pasta with tongs 1-2 minutes to combine; adjust salt and pepper to taste. Serve pasta in shallow bowls  with more cheese to pass for topping.