In its very simplicity lie the secrets. This sauce is incredible. It has 3 ingredients, and no chopping. The amateurgourmet calls it Marcella Hazan's CRAZY tomato sauce. This is not your thick pasty sauce, it is a light luscious wonder. Add garlic or basil or mozzarella to it as you choose but try it this way first. The butter..DON'T switch to olive oil, it makes the sauce.