• Bring a large pan of salted water to the boil, add the spaghetti and cook according to the packet instructions
• Meanwhile, put another large pan on a medium heat and add olive oil
• Add the onion and give it a stir, When the onion ripe, add most of the tomato sauce and the tomatoes
• Turn the heat down and stir for a minute and put a little salt
• Drain the spaghetti in a colander, then transfer it to the pan of sauce and stir well
• Taste and add more salt and pepper if you think it needs it