This is the perfect tomato sauce for spaghetti, pizza and meatballs in tomato sauce. There is a 'secret' ingredient which provides natural sweetness and silky taste - carrot. You do not see the carrots in the sauce, but you will deffinitely taste the difference. It is a basic tomato sauce and I've prepared it many times without remembering the source, but I read somewhere lately that this is a Mario Batali's recipe which is quite possible - he knows best how to prepare Italian food. The only difference between his original recipe and this one here is that I add some tablespoons of butter which, according to my opinion provide even more silkyness to the sauce. Enjoy!