Marcella’s original version of this sauce is one of the great tomato sauces. She uses canned tomatoes and leaves the onion unchopped then throws everything together to boil into a sauce. It’s wonderful and I encourage you to try it.
This sauce is how I make it when I use fresh tomatoes (although you can use canned for mine as well). The main difference is the onion. I love soft cooked onions and like to have them remain in the sauce.