Bring a large pot of salted water to boil.
Add the pine nuts, garlic and half of the oil to a food processor and pulse until just combined. Add the parsley, 1 teaspoon salt, the pepper and nutmeg. Pulse, adding the remaining oil in a steady stream, scraping down the sides, to make a chunky paste. Add the cheese and pulse just to combine.
When the pasta water is thoroughly boiling, add the pasta and cook according to package directions until al dente. When ready to serve, drain the pasta, reserving about 1/3 cup pasta water. Toss until the butter melts and the pasta is coated with a glossy sauce. Serve immediately, finishing with the additional cheese.Top Tips for the Perfect Pasta by Geoffrey Zakarian:
1.) Even though Grandma told us to, do not put oil in the water.
2.) Add plenty of salt to a large boiling pot of water. You want the water to taste like the sea.
3.) Cook the pasta about 75% to 85% done. That’s because the pasta will continue cooking in the sauce.
4.) Save half of the cooking water. It’s the glue that makes it all get along!