I’ve never found a jarred sauce that I like. Ever. But it’s just as simple and easy to Doctor up a can of tomatoes. The simplest recipe I know is also the best recipe. Simply dump a jar of crushed tomatoes into a sauce pot. Add a whole onion
Rather than add a jar of prepared pasta sauce, I spike the quick home-made sauce with a bit of Italian seasoning to "recreate" bottled sauce.Why add a jar (of, I assume, ready-made tomato sauce?)? You've basically made tomato sauce and then are adding a jar of tomato sauce to it?