01 - Pat chicken breasts dry with paper towels and 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 from pan and set aside on a plate.
03 - In the same pan, add red onion and sauté for 2 minutes until slightly softened. Add garlic and cook for 30 seconds until fragrant.
04 - Stir in cherry tomatoes and cook for 3 to 4 minutes until they start to release juices and soften.
05 - In a small bowl, whisk together balsamic vinegar, chicken broth, and honey until well combined. Pour mixture into the pan, scraping up any browned bits from the bottom.
06 - Return the chicken breasts to the skillet, nestling them among the vegetables and sauce.
07 - Sprinkle with thyme and chopped basil. Reduce heat to low, cover, and simmer for 12 to 15 minutes until chicken is cooked through (internal temperature reaches 165°F).
08 - Remove lid and simmer uncovered for 2 to 3 minutes to allow sauce to thicken slightly.
09 - Transfer chicken to serving plates, spoon pan sauce and vegetables over the top, and garnish with additional fresh basil leaves.