01 - Pat the chicken breasts dry with paper towels. Season both sides generously with salt and black pepper.
02 - Heat olive oil and butter in a large skillet over medium-high heat until butter foams. Add chicken breasts and sear for 4–5 minutes per side until golden brown and nearly cooked through. Transfer to a plate and set aside.
03 - Reduce heat to medium. Add minced garlic to the skillet and sauté for 30 seconds until fragrant, being careful not to burn.
04 - Add Boursin cheese, chicken broth, and heavy cream to the skillet. Stir constantly until the cheese melts completely and the sauce becomes smooth and velvety.
05 - Stir in fresh parsley and dried thyme. Allow the sauce to simmer for 1 minute to infuse the flavors.
06 - Return chicken breasts to the skillet. Simmer for 7–10 minutes, turning once or twice, until chicken is fully cooked (internal temperature reaches 165°F) and the sauce has thickened enough to coat the back of a spoon.
07 - Taste the sauce and adjust seasoning with additional salt or pepper if needed. Transfer to serving plates and garnish with extra fresh parsley.