1Cook pasta in a large pot of heavily salted boiling water until al dente. Reserve ½ cup of pasta water.
2Transfer the cooked pasta using tongs directly into a large pot or serving plate.
3Add butter and 1 ½ cups of Parmigiano Reggiano to the pasta, stirring vigorously until an emulsified sauce is created. Add splashes of pasta water as needed.
4Serve and garnish with extra Parmigiano Reggiano.