Bring 6 quarts of salted water to a boil in a large pot for the macaroni.
While the water is coming to a boil, make the sauce. Place all sauce ingredients in a high-speed blender (see recipe note if you don’t have one) and blend until completely smooth. This can take anywhere from a minute to 5 minutes depending on your blender. Scrape down the sides of the blender with a rubber spatula from time to time.
Once water is boiling, cook pasta. Drain pasta in a large colander and add immediately back to the pot. It should still be piping hot and wet with pasta water. Do not rinse and do not wait. This part is important because you need the wet, hot pasta to get the sauce creamy and awesome and clinging to the pasta.
Add the sauce to the pasta pot and use the rubber spatula to mix. Turn the heat on low and stir for about 2 minutes to get everything warmed through. Taste for salt and seasoning.