01 - Preheat your 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 fully combined.
03 - Place the chicken breasts in a large resealable bag or shallow dish. Pour the marinade over the chicken, turning to coat thoroughly. Marinate for at least 30 minutes in the refrigerator for best flavor, or proceed immediately if short on time.
04 - Arrange the 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 the chicken is cooked through and the internal temperature reaches 165°F with the glaze slightly caramelized.
06 - Let the chicken rest for 5 minutes before slicing. Garnish with fresh parsley and cherry tomatoes if desired.