Saute chopped onion in olive oil until starting to get soft and translucent. Add the minced garlic and saute just until it starts getting fragrant, about a minute. Don't let the garlic burn.
Add the crushed tomatoes, the herbs and sugar.
If just making the sauce, heat to very hot and simmer approx. 30-45 minutes for a Marinara sauce. If you want your sauce thicker, cook longer to desired taste and consistency.
Keyword marinara sauce, tomato sauce, spaghetti sauce, red sauce,