In a small pan, sweat the garlic in the butter for a few minutes without color.
Bring salted water to the boil in a large saucepan and cook the pasta until al dente. Pour over a bowl into a colander to catch some of the starchy cooking water. This is important; You need it for all pasta sauces, especially this one.
Pour the melted garlic butter into a warmed pasta bowl; the bottom of the bowl must be completely covered. Add the pasta with 5-6 tablespoons of the cooking water and the parmesan, season with salt, pepper and mix everything thoroughly - preferably with a pasta tongs or two forks. The garlic butter combines with the water and cheese to create a wonderfully creamy sauce. Possibly mix some more cooking water into the pasta so that the sauce stays smooth and doesn`t get too thick.
The pasta is served in deep plates.
Pass a large piece of parmesan cheese around with a cheese grater!