To make the sauce, put the butter, garlic and salt in a pan and put it on a low fire until the butter melts and it starts bubbling. Raise the flame for a few seconds until the butter and garlic turn brown. Now your sauce is ready.
Cook the triangolini following the steps on “How to cook pasta al dente”. Only in this case you will not have a pre set cooking time. This will vary on the thickness of your pasta (it should take approximately a couple of minutes to cook if you have just made the pasta. If a number of hours have passed since you made the pasta then it would be slightly dry and could take between 10 to 12 minutes to cook). So, the best solution is to taste it! Remember, to check the joint, where your pasta is thicker. It does have to remain firm to be al dente.
When the pasta is cooked, drain it and put it in the pan with the butter and garlic sauce. Mix well on low fire for a minute.
Serve hot with some pepper and thinly grated Parmigiano Reggiano.