01 - Pat the chicken breasts dry with paper towels. Season both sides generously with salt and black pepper, pressing gently to help the seasoning adhere.
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 chicken 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 continuously until the cheese melts completely and the mixture forms a smooth, homogeneous sauce.
05 - Stir in fresh parsley and dried thyme. Allow the herbs to infuse into the sauce for about 1 minute.
06 - Return chicken breasts to the skillet along with any accumulated juices. Simmer for 7-10 minutes, turning occasionally, until chicken is fully cooked (internal temperature reaches 165°F) and sauce has thickened to coat the back of a spoon.
07 - Taste the sauce and adjust seasoning with additional salt and pepper if needed. Transfer to a serving platter, garnish with extra fresh parsley, and serve immediately.