01 - Bring a large pot of salted water to a boil. Cook the pasta according to package directions until al dente. Reserve ¼ cup of the cooking water, then drain the pasta.
02 - Heat olive oil in a large skillet over medium heat. Add onion and sauté until translucent, about 3 to 4 minutes. Stir in garlic and cook for an additional minute.
03 - Add crushed tomatoes, sugar, salt, black pepper, and oregano to the skillet. Simmer gently for 8 to 10 minutes, stirring occasionally.
04 - Reduce heat to low, stir in heavy cream, and simmer for 2 to 3 minutes until the sauce achieves a creamy consistency.
05 - Add the drained pasta and reserved cooking water to the sauce, tossing gently to coat evenly.
06 - Remove from heat and fold in fresh basil leaves and grated Parmesan cheese.
07 - Transfer to serving plates and garnish with extra Parmesan and basil if desired. Serve immediately.