5ouncesgrated pecorino Romanoplus more for serving
2teaspoonsfreshly ground black pepperplus more for serving
Instructions
Bring a large pot of water to boil over medium-high heat.
While the water comes to boil, combine pecorino Romano, black pepper and 5 tablespoons of cold water in a food processor and process until very smooth and thick, scraping down the sides as needed (add more cold water, 1 teaspoon at a time if needed). Scrape mixture into the bottom of a serving bowl (large enough to add and toss pasta).
Add bucatini to boiling water and cook according to package directions until al dente.
When the pasta has 1 minute left too cook, scoop out ½ cup of hot cooking water. Add 3 tablespoons of it, one at a time, to cheese mixture while stirring vigorously, until you have a thick, smooth sauce. Drain pasta and add immediately to sauce; again toss vigorously to coat the pasta, adding more cooking water, a little at a time, if needed to loosen the sauce. Divide between 4 pasta bowls and finish with more pecorino and black pepper. Serve immediately.