
Hailing from the Lazio region, pasta alla gricia is one of the four classic pastas of Rome and it is super easy to make with just 4 ingredients.
In a large, high-sided skillet over medium-high heat, cook guanciale, stirring frequently, until deeply golden, 6 to 7 minutes. Remove from heat and, using a slotted spoon, transfer guanciale to a paper towel–lined plate, keeping the fat in the skillet. Add pepper and stir until fragrant.
Meanwhile, add water and salt to a medium-large pot and bring to a boil. Add pasta and cook, stirring to prevent sticking, until pliable but not al dente, 2 to 3 minutes. Remove from heat.
Return skillet to medium-low heat. Add 1¾ cups pasta water to pan and swirl to combine. Add parcooked pasta and ½ cup Pecorino and stir to coat evenly. Once Pecorino is mostly melted, gradually stir in remaining 1 cup Pecorino in 2 batches, adding more pasta water as necessary to keep sauce silky. Once pasta is al dente, remove from heat and continue stirring gently until sauce is smooth.
Fold in cooked guanciale and serve with more Pecorino.