01 - Generously season both sides of each chicken breast with salt and black pepper, ensuring even coverage for maximum flavor penetration.
02 - Place a large skillet over medium-high heat. Add butter and olive oil, allowing them to melt together and coat the bottom of the pan evenly.
03 - Carefully place seasoned chicken breasts in the hot skillet. Cook for 6-8 minutes per side until golden brown and the internal temperature reaches 165°F. Transfer to a plate and cover loosely with foil.
04 - Reduce heat to medium. Add chopped onion and minced garlic to the same skillet, cooking for 2-3 minutes until onions become translucent and garlic is fragrant, being careful not to burn.
05 - Pour in chicken broth while scraping the bottom of the pan with a wooden spoon to release any browned bits. Let simmer for 2 minutes to reduce slightly and concentrate flavors.
06 - Lower heat to medium-low. Stir in heavy cream, parsley, chives, basil, and thyme. Simmer gently for 3-4 minutes, stirring occasionally, until the sauce begins to thicken and coat the back of a spoon.
07 - Return chicken breasts to the skillet, spooning the creamy herb sauce generously over each piece. Cook for 2-3 minutes until chicken is heated through. Garnish with additional fresh herbs if desired and serve immediately.