01 - Bring a large pot of generously salted water to a rolling boil. Add the pasta and cook according to package directions until al dente. Drain through a colander, reserving ½ cup of the starchy pasta water. Set aside.
02 - While the pasta cooks, heat the olive oil in a large skillet over medium heat. Add the chopped onion and sauté for 3 minutes until softened and translucent. Stir in the minced garlic and cook for 1 minute until fragrant, being careful not to let it brown.
03 - Pour in the crushed tomatoes, sugar, dried oregano, and dried basil. Season generously with salt and freshly ground black pepper. Stir to combine and bring to a gentle simmer. Cook uncovered for 10 to 12 minutes, stirring occasionally, until the sauce thickens and the flavors meld together.
04 - Add the drained pasta to the skillet with the tomato sauce. Toss thoroughly to coat every strand or piece. If the sauce seems too thick, add a splash of the reserved pasta water, a tablespoon at a time, until the desired consistency is reached.
05 - Divide among warmed plates or bowls. Finish with a generous sprinkle of freshly grated Parmesan cheese and tear fresh basil leaves over the top. Serve immediately while hot.