01 - Preheat oven to 400°F.
02 - In a medium bowl, whisk together balsamic vinegar, olive oil, honey, minced garlic, Italian herbs, Dijon mustard, salt, and pepper until well combined.
03 - Place chicken breasts in a large resealable bag or shallow dish. Pour marinade over chicken, turning to coat thoroughly. Marinate for at least 30 minutes in refrigerator for best flavor, or proceed immediately if time is limited.
04 - Arrange marinated chicken breasts in a single layer in a baking dish. Pour any remaining marinade over the top.
05 - Bake for 20 to 25 minutes, or until chicken is cooked through and internal temperature reaches 165°F and glaze is slightly caramelized.
06 - Let chicken rest for 5 minutes before slicing. Garnish with fresh parsley and cherry tomatoes if desired.