01 - Pat chicken breasts dry with paper towels. Season both sides generously with salt and black pepper.
02 - Heat olive oil in a large skillet over medium-high heat. Add chicken breasts and sear for 3 to 4 minutes per side until golden brown. Remove chicken from pan and set aside.
03 - Add red onion to the same pan and sauté for 2 minutes until slightly softened. Add minced garlic and cook for 30 seconds until fragrant.
04 - Stir in cherry tomatoes and cook for 3 to 4 minutes until they begin to release their juices and soften.
05 - In a small bowl, whisk together balsamic vinegar, chicken broth, and honey until combined. Pour mixture into the pan, using a wooden spoon to scrape up any browned bits from the bottom.
06 - Return chicken breasts to the skillet, nestling them among the vegetables. Sprinkle with thyme and chopped basil. Reduce heat to low, cover, and simmer for 12 to 15 minutes until chicken is cooked through to an internal temperature of 165°F.
07 - Remove the lid and continue simmering uncovered for 2 to 3 minutes to allow the sauce to thicken slightly.
08 - Transfer chicken to plates and spoon the pan sauce and vegetables over the top. Garnish with additional fresh basil leaves.