I just made one. I don't really measure when I'm cooking. I just go by taste. I start out with what I think it needs and then taste and add more of this or that. I diced up some green bell peppers (1 small) and yellow onions (1 small) and sauted them in evoo with some minced up garlic (2 large cloves). Then I took a large can of Hunts Whole tomatoes and crushed the tomatoes in my hands into the pan ..... breaking up the tomato into pieces. I added the juice from the can also. I then added a small can of Hunts Tomato Sauce and Tomato Paste. I put in fresh chopped basil (I'd say about 2 Tbsp.) and fresh chopped oregano (I'd say about 1 Tbsp.). A couple really good pinches of kosher salt and a really good pinch of freshly ground black pepper. My fresh parsley didn't look so good so I added probably 1 tsp. dried parsley flakes, 1/2 tsp dried marjoram, 1/2 tsp dried thyme and 1 bay leaf. About 6 dashes of Franks Hot Sauce and a good pinch of sugar. Taste and see if you need to add more of any of the ingredients. You may or may not need a little more salt, sugar, pepper or hot sauce all depends on your particular taste. Personally, I like a spicer sauce but DH like a sweeter one so I compromise and make a mild sauce.
You can serve this over spagetti and top it with freshly grated parm. cheese. Or do like I did today and cook up some penne pasta and drain it and put it in a baking dish cover the pasta with some of the sauce and top that with a mixture of fresh cheeses. I used moz., parmesan and parm./reggi. Stuck that under the broiler until the cheese melted and was a toasty brown. Watch this closely when broiling it happens pretty quickly.
Enjoy!