2 oz. olive oil
1 cup onion, small diced
1 tbsp garlic, minced
1/2 tsp dried oregano
4 c. diced or ground tomatoes (canned)
1 tbsp fresh basil, chopped
salt, pepper, sugar to taste

Sweat onions in olive oil in a saucepan. Add garlic, sweat until aromatic. Add oregano, sweat 1 minute. Add tomatoes, simmer 15-20 minutes. Check consistency. Add basil, season to taste.

Source: Chef S. Culp, PA Culinary Institute, Vegetarian Enthusiast course, 2/16/08