Escoffier codified the mother sauces of French cooking. In the Italian-American tradition, there is only one: tomato sauce. Call it marinara (we do), call it gravy (we don't), call it whatever your grandma called it. It's tomato sauce. There's almost nothing we won't cook in it or put it on.
The real deal—what we grew up with and the way we would do it if we had our choice (and didn't have so many vegetarian friends and customers) would be to make that sauce, then simmer up a batch of braciola or meatballs in it, and then use the resulting meat-infused product as our "tomato sauce" in all its myriad applications. And if you're not catering to vegetarians, we advise doing just that: make a triple batch of sauce, use it to simmer up braciola or meatballs and then use that tomato sauce, fresh or from the freezer, whenever tomato sauce is called for in these pages.
Use good Italian canned tomatoes and high quality olive oil when making this sauce, and take your time—there's no rushing it. When you're cooking the garlic, you want to very, very slowly convert the starches in it to sugars and then to caramelize those sugars. Slow and steady. Then get the tomatoes in and let them simmer. Not a ton happens over the four hours—no epic deepening of color or furious reduction—but it cooks as much water out of the tomatoes as possible without turning them into tomato paste.
