01 - Pat the chicken breasts dry with paper towels. Season both sides generously with salt and black pepper, ensuring even coverage.
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. Remove from skillet and set aside on a plate.
03 - Reduce heat to medium. Add minced garlic to the same 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 with a wooden spoon until cheese melts completely and sauce becomes smooth and velvety.
05 - Stir in fresh chopped parsley and dried thyme. Allow flavors to infuse for 1 minute.
06 - Return chicken breasts to the skillet, spooning sauce over the top. 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 salt or pepper if needed. The Boursin cheese provides significant seasoning, so taste before adding more salt.
08 - Transfer chicken and sauce to a serving platter or individual plates. Garnish with additional fresh chopped parsley. Serve immediately while hot.