Boil the pasta: Bring a large pot of salted water to a boil. Cook pasta until just al dente.
Reserve 1 cup of pasta water, then drain.
Prep the tomatoes: Drain and chop the sun-dried tomatoes. Reserve 1–2 tablespoons of their oil for extra flavor.
Sauté aromatics: In a large skillet over medium heat, warm the tomato oil (or olive oil). Add garlic and cook for 30–45 seconds until fragrant, not browned.
Build the base: Stir in tomato paste and red pepper flakes.
Cook 1 minute to caramelize the paste slightly.
Add tomatoes and herbs: Toss in the chopped sun-dried tomatoes and Italian seasoning. Stir for 30 seconds to bloom the herbs.
Deglaze: Pour in the broth, scraping up any browned bits. Simmer 1–2 minutes to reduce slightly.
Cream it up: Lower heat and add heavy cream.
Simmer gently for 2–3 minutes until the sauce thickens slightly. Season with salt and pepper.
Cheese and emulsion: Add Parmesan and stir until melted and smooth. If too thick, splash in pasta water to loosen.
Combine pasta: Add drained pasta to the skillet.
Toss to coat, adding more pasta water as needed to create a silky sauce that clings to the noodles.
Finish: Stir in chopped basil. Taste and adjust salt, pepper, and heat. Serve with extra Parmesan and a drizzle of tomato oil if you like.