Pour in the crushed tomatoes and stir. Let simmer for 5-7 minutes to reduce slightly.
Lower the heat and stir in the heavy cream, Parmesan cheese, sugar, salt, and black pepper. Mix well until the sauce is creamy and smooth.
Add the chopped basil to the sauce and stir to combine. Simmer for 2-3 minutes to meld the flavors.
Add the cooked pasta to the skillet and toss to coat evenly in the creamy basil tomato sauce. If the sauce is too thick, add a splash of reserved pasta water to loosen it.
Taste and adjust seasoning with additional salt or pepper, if needed.
Serve the pasta immediately, garnished with extra Parmesan cheese and fresh basil, if desired.
Notes
You can substitute heavy cream with half-and-half for a lighter version. Add red pepper flakes for a spicy kick.