Cook the pasta in a large pot of salted water.
While the pasta is cooking, finely grate the cheese.
Freshly grind the pepper with a pepper mill that will give you big pieces or smash with the back of your knife.
For authentic Roman cacio e pepe, toast the smashed black pepper or medium low heat in a saute pan, about 2 minutes until you start to smell a strong aroma.
Slowly add pasta water into the cheese until a cream is formed. The moment you see a cream-like consistency stop immediately or the mixture might curdle.
When the pasta tests al dente drain well.
Add the al dente pasta directly into the sauce to coat.
Add more grated cacio and the toasted ground black pepper, don’t hold back!