Finely mince the onion and garlic.
In a large pan or skillet with olive oil, sauté the onion and garlic over medium-high heat until fragrant.
Pour in the red wine and allow it to reduce by half. It should take about 5 minutes.
Bring salted water to a boil. Cook the pasta according to package directions.
Add the passata, vegetable broth, sugar, Italian seasoning, salt and pepper to the pan with the onions. Let it simmer over medium heat for 10-15 minutes, while the pasta cooks.
When the pasta is done, swirl it around the pan until covered in sauce. Serve with fresh basil.