Boil Rigatoni:
Boil rigatoni in a large pot of salted water until al dente. Set aside ½ cup pasta water before draining.Sear Chicken:
Heat olive oil in a skillet over medium-high heat. Season chicken with salt and pepper, then sear until golden. Remove chicken from skillet.Sauté Garlic:
In the same skillet, melt butter and sauté minced garlic briefly. Add chicken broth and bring to a simmer.Make Cream Sauce:
Pour in heavy cream and allow to thicken slightly, then stir in Parmesan cheese.Combine Chicken Pasta:
Return chicken to the skillet along with rigatoni; toss to coat evenly. Simmer for 1 more minute.Garnish with Parsley:
Plate and sprinkle with parsley.