I have a homemade one it takes a while to get good flavor on a homemade sauce;
everything is pretty much to taste
Plum tomatoes (peel them you do this by cutting slits, not too deep, in them boiling them for a few moments and shocking them under cold water, then you can just pull the skins off)
Garlic (sauté before you put tomatoes in)
Onions (sauté before you put tomatoes in)
Peppers (optional)(sauté before you put tomatoes in)
After everything is put into pan together
alittle more garlic
Oregano
Basil (I only use alittle bit because I don’t like basil)
Parsley (Lots)
Garlic powder , onion powder
cook for about 2 hours and skimming the foam off the top
Taste add more seasions and some balsamic vinegar and some honey about a tablespoon so make it alittle sweet
Cook for about another hour skimming the top taste add any necessary seasoning and a pinch of sea salt and serve
Here is a decent marinara recp.
Quick and Easy Homemade Marinara Sauce