Put the tomatoes in a bowl and crush them with your hands until you see no more lumps. Set aside.
In a pan, add the EV olive oil, the onion and the garlic.
Once the garlic begins to turn lightly golden, add the tomatoes.
Add salt and peperoncino as desired.
Once the sauce comes to a boil, set the flame to medium/low and add the basil.
Cook the sauce for 10 minutes and you are done!