Whisk together marinade ingredients: olive oil, balsamic vinegar, garlic, onion powder, salt, and pepper. Allow chicken to marinate at least 30-60 minutes
Place chicken in air fryer and cook at 375° for 8 to 10 minutes until chicken is cooked through
Remove chicken from air fryer and top with tomato slices and burrata or mozzarella. Place back and air fryer for a couple of minutes until cheese is melted and bubbly
Drizzle chicken with balsamic glaze, top with basil, salt, and pepper and serve!