Bring a large pot of salted water to a boil. Cook the pasta according to package directions until al dente. Drain and set aside.
In a large skillet over medium heat, melt the butter. Toss in the minced garlic and cook until fragrant, about 1 minute.
Pour in the heavy cream and Buffalo sauce. Stir together and let the sauce warm up for 2–3 minutes.
Sprinkle in the Parmesan cheese and stir until the sauce is creamy and smooth. Keep it moving so nothing sticks.
Add the shredded chicken to the sauce and toss until coated and heated through.
Fold the cooked pasta into the sauce and chicken, stirring gently so everything gets cozy.
Taste and season with salt and pepper as needed.
Serve hot, sprinkled with chopped parsley if you’re feeling fancy.