Heat oil in saucepan on high heat, then add onions and garlic.
Sauté onions and garlic until soft, then lower heat to medium.
Open can of tomatoes, and while still in the can use a sharp knife to roughly chop tomatoes.
Pour contents into pan with onions and garlic and then add tomato paste and saba, then stir.
Add oregano, salt and pepper, then stir.
Lower heat to simmer, cover pan and allow sauce to simmer for approx. 20 mins, until flavors are nicely combined.
Tear basil and drop into sauce and stir.
Use sauce as desired over pasta, or add minced beef or meatballs.
Notes
If you prefer a smoother marinara sauce, you can opt for diced canned tomatoes instead of whole, or you can purée the tomatoes before creating the sauce.