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. Reserve ½ cup of the starchy pasta water before draining.
02 - While the pasta cooks, warm the olive oil in a large skillet over medium heat. Add the chopped onion and sauté for about 3 minutes until soft and translucent. Stir in the minced garlic and cook for 1 minute until fragrant.
03 - Pour in the crushed tomatoes, sugar, dried oregano, and dried basil. Season with salt and pepper to taste. Stir to combine and let the sauce simmer uncovered for 10 to 12 minutes, stirring occasionally, until it thickens slightly.
04 - Add the drained pasta directly to the skillet with the tomato sauce. Toss well to coat every strand or piece, adding small splashes of the reserved pasta water as needed to adjust the sauce consistency.
05 - Transfer to warm plates or a serving dish. Finish with a generous sprinkling of grated Parmesan cheese and scatter fresh basil leaves over the top. Serve immediately while hot.