Simmer with Cream: Pour in the heavy cream and bring everything to a gentle simmer. Stir in the Parmesan cheese until it melts.
Combine Pasta and Sauce: Add the cooked pasta to the skillet, tossing together until each strand is coated in sauce. Adjust with reserved pasta water if too thick.
Season to Taste: Taste and add salt and pepper as needed.
Serve and Garnish: Serve immediately, garnished with fresh parsley.
Notes
Serve with a green salad or garlic bread. Leftovers can be refrigerated for up to 3 days.