01 -
In a mason jar or food processor, combine olive oil, apple cider vinegar, lemon juice, onion powder, garlic powder, Italian seasoning, salt, black pepper, sugar, and liquid smoke. Shake or blend well to fully emulsify.
02 -
Add the diced chicken tenderloins to a zip-top bag. Pour in the marinade, seal, and remove as much air as possible. Massage to fully coat. Refrigerate for at least 30 minutes, up to 4 hours.
03 -
Add olive oil to a ridged grill pan. Using a basting brush or paper towel, spread oil over the raised ridges. Preheat the pan over medium heat for 5 minutes.
04 -
Drain excess marinade from the chicken. Place chicken pieces in a single layer on the preheated grill pan. Cook for about 4 minutes without moving until the pieces release easily.
05 -
Flip each chicken piece and continue to cook for 3–4 minutes, or until chicken is cooked through and internal temperature reaches 165°F.
06 -
Remove from grill pan and serve hot with desired dipping sauces.