01 -
Bring a large pot of salted water to a boil. Cook rotini until al dente, about 8–9 minutes. Reserve 1/2 cup pasta water, then drain.
02 -
Heat olive oil in a large skillet over medium-high. Add beef, season with salt and pepper, and brown on all sides. Remove and set aside.
03 -
In the same skillet, melt butter over medium heat. Add garlic and sauté for 30–60 seconds until fragrant.
04 -
Pour in the heavy cream, stirring constantly. Bring to a gentle simmer.
05 -
Add parmesan cheese gradually, stirring until melted and smooth. If sauce is too thick, add reserved pasta water, a little at a time.
06 -
Return beef to the skillet. Add cooked rotini and toss until fully coated and heated through.
07 -
Adjust seasoning with more salt and pepper if needed. Garnish with chopped parsley and extra parmesan. Serve hot.