01 - Cook pasta according to package directions. Reserve ½ cup pasta water before draining. Set aside.
02 - Pat chicken breasts dry with paper towels. Season both sides generously with salt, pepper, and Italian seasoning.
03 - Heat olive oil in large skillet over medium-high heat. Add chicken and cook 5 to 6 minutes per side until golden brown and internal temperature reaches 165°F. Transfer to plate, rest 5 minutes, then slice into strips.
04 - In same skillet, melt butter over medium heat. Add minced garlic and sauté 1 minute until fragrant, being careful not to burn.
05 - Pour in heavy cream and chicken broth. Bring to gentle simmer, stirring occasionally to prevent scorching.
06 - Whisk in Parmesan cheese until completely melted and sauce is smooth. Stir in sun-dried tomatoes and red pepper flakes. Simmer 2 to 3 minutes until slightly thickened.
07 - Add sliced chicken and cooked pasta to skillet. Toss thoroughly to coat with sauce. Add reserved pasta water as needed for desired consistency. Remove from heat, fold in fresh basil. Serve immediately with additional Parmesan and basil.