Pasta alla gricia
Pasta alla gricia is a pasta dish originating in the Lazio region of Italy. According to one hypothesis, the name of the dish derives from the Romanesco word gricio. In papal Rome, the grici were sellers of common foods, and got this name because many of them came from Valtellina, at that time possession of the Swiss canton of Grigioni. Pasta alla gricia then would mean pasta prepared with the simple ingredients readily available at the local gricio.
Source: Wikipedia
Recipes

Recipe: Pasta alla Gricia - John Fodera's Tuscan Vines
Carbonara. Cacio e Pepe. Amatriciana. Gricia. If you spend any length of time in Roma, you will inevitably run across these dishes with regularity. They are considered by locals and tourists alike to be the quintessential pasta dishes of Rome. .....

Pasta alla Gricia (Guanciale Pasta) - Food and Journeys®
Pasta alla Gricia (or Guanciale Pasta) is a classic Roman dish that's great for weeknight dinners or anytime you're craving a delicious, filling plate of pasta. The buttery and rich flavor from the cured pork cheek, combined with pecorino Romano's nuttiness...