01 -
Combine olive oil, balsamic vinegar, brown sugar, lemon juice, soy sauce, Worcestershire sauce, minced garlic, salt, and black pepper in a large zip-top bag. Squeeze the bag to blend all the ingredients evenly.
02 -
Place chicken breasts in the bag and use your hands to massage the marinade over the chicken through the bag. Refrigerate for at least 30 minutes, ideally up to 4 hours for optimal flavor penetration.
03 -
Remove the bag from the refrigerator 30 minutes prior to cooking and allow the chicken to come to room temperature.
04 -
Preheat grill to medium-high heat. Remove chicken breasts from marinade and shake off excess. Grill for 5 to 6 minutes per side or until the internal temperature reaches 155°F. Transfer chicken to a plate, cover with foil, and rest for 5 minutes or until internal temperature rises to 165°F.
05 -
Preheat oven to 400°F. Arrange chicken breasts on a baking sheet and bake for 18 to 20 minutes, depending on thickness, until the internal temperature reaches 155°F. Immediately cover with foil and rest for 5 minutes or until internal temperature increases to 165°F.