Start boiling the water for the pasta, using less water than you normally would to boil pasta. This will help ensure the water becomes more starchy from the pasta. Add in salt to the water but not too much! You’ll be adding this water to the pasta sauce eventually so you don’t want it to be over-salty.
Heat a pan to medium low heat and add freshly crushed black pepper to it and let the pepper dry roast.
Grate fresh Pecorino Romano or Parmesan into a bowl, it’s important to use freshly grated and not pre-grated cheese for this because you want the cheese to melt nicely into the sauce. Pre-grated cheese will give you clumps!
Cook your pasta al dente according to its instructions.
Once your pasta is cooked, set aside about 1 cup of pasta water in a separate bowl ( I usually only end up using about 1/2 cup of pasta water but it's always better to have more just in case you need it).
Add your pasta into the pan with the black pepper and add it in about 2 tablespoons of pasta water into the pan as well. Mix the pasta with the black pepper thoroughly so it starts to form a silky coating over the pasta.
Whisk in some pasta water with your fresh grated cheese until it forms a smooth consistency. Then pour this over the pasta and turn the heat up to medium and keep mixing the pasta to achieve a silky, creamy sauce.
Mix the cheese sauce in thoroughly with the pasta, top with some more fresh cheese and salt and a touch of black pepper, and enjoy!