Grate the pecorino finely. Cook the pasta as indicated on the package, keeping the cooking water.
Put the peppercorns in a mortar, scoop into a pan and roast for 2 minutes dry until it starts to smoke, add 2 ladles of cooking water and a large portion of the cheese.
Now keep stirring over the heat until the cheese melts and a binding is formed, add pasta and season with salt, keep stirring well, if it becomes too sticky you can keep stirring in water. Finish with the rest of the grated cheese, some more pepper from the grinder, and drizzle with olive oil.
Tips
Make sure that the temperature does not exceed 65 ° C while adding the pecorino to prevent the sauce to be shift. The dish can get dry very quickly, so stay attentive and add more cooking water if necessary.