Heat olive oil in a large pot over medium heat. Add onion and stir for about a minute then add garlic and stir just until garlic and onion turn translucent but not brown.
Turn heat down to medium-low and add crushed tomatoes, red wine, sugar (if using), basil, oregano, parsley, salt, and pepper.
Stir well and cook until heated through. Then simmer on low until ready to serve.
