Well, i use it just after coocking!
After it is boiled and putted the water away!
The best way that i use to eat pasta is separatedly make a sauce with 2/3 cups of tomato sauce, 1/2 coffeespoon sugar, 1/3 coffeespoon salt, mexican red Peppers, and before adding this just chop half onion with olive oil and let it heat it just enought to make onion change color, then add the rest ingridients! Let it on fire maybe for 15/20 min, to get a hard and consistent sauce (not too mutch though)! Then when the pasta is al dente, dry it from the water, and add this sauce mixing all together! In the end just add a bit olive oil, and voilá! For eating with scrambled egg whites is the best .