01 - Pat chicken breasts dry with paper towels. Season both sides evenly with salt, black pepper, and garlic powder.
02 - Heat olive oil in a large skillet over medium-high heat. Sear chicken breasts for 4 to 5 minutes per side until a golden crust forms. The chicken does not need to be fully cooked at this stage. Remove and set aside on a plate.
03 - In the same skillet, add minced garlic and sun-dried tomatoes. Sauté for 1 to 2 minutes until fragrant, scraping up any browned bits from the bottom of the pan.
04 - Reduce heat to medium. Pour in heavy cream and chicken broth, stirring constantly to deglaze the pan and combine all the flavors.
05 - Stir in the basil pesto and grated Parmesan cheese until the sauce is smooth and well blended. Bring to a gentle simmer.
06 - Nestle the seared chicken breasts back into the skillet. Spoon sauce over each piece to coat evenly.
07 - Cover the skillet with a lid and reduce heat to low. Simmer for 10 to 12 minutes, or until the chicken is cooked through to an internal temperature of 165°F and the sauce has thickened.
08 - Transfer chicken to serving plates and spoon the creamy pesto sauce generously over each breast. Garnish with torn fresh basil leaves and additional Parmesan cheese. Serve immediately.