01 - Pat chicken breasts thoroughly dry with paper towels. Season both sides generously with salt and black pepper, pressing seasoning into meat to adhere.
02 - Heat olive oil in a large skillet over medium-high heat until shimmering. Add chicken breasts and sear for 3 to 4 minutes per side until deep golden brown. Remove chicken from pan and set aside on a plate.
03 - Add red onion to the same pan and sauté for 2 minutes until slightly softened and translucent. Add minced garlic and cook for 30 seconds until fragrant, being careful not to burn.
04 - Stir in cherry tomatoes and cook for 3 to 4 minutes until they begin to blister and release their juices, creating a light sauce in the pan.
05 - In a small bowl, whisk together balsamic vinegar, chicken broth, and honey until honey is fully dissolved. 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 thyme and chopped basil evenly over the top. Reduce heat to low, cover, and simmer for 12 to 15 minutes until chicken is cooked through (internal temperature reaches 165°F).
07 - Remove lid and continue simmering uncovered for 2 to 3 minutes until sauce reduces and thickens slightly. The glaze should coat the back of a spoon.
08 - Transfer chicken to serving plates. Spoon pan sauce and vegetables over the chicken. Garnish with additional fresh basil leaves. Serve immediately while hot.