01 - Bring a large pot of salted water to a boil. Cook pasta according to package instructions until al dente. Reserve 1/2 cup pasta water before draining.
02 - Season chicken pieces with salt and black pepper evenly.
03 - Heat olive oil in a large skillet over medium-high heat. Add chicken and cook for 5–7 minutes, stirring occasionally, until golden and cooked through. Remove and set aside.
04 - Reduce heat to medium. Add minced garlic to the skillet and sauté for 30 seconds until fragrant.
05 - Pour in heavy cream and bring to a simmer. Cook for 2 minutes, then stir in pesto and Parmesan until smooth and combined.
06 - Return chicken to skillet. Add drained pasta and toss everything together, adding reserved pasta water as needed to achieve desired consistency. Serve garnished with fresh basil and extra Parmesan.