- Bring chicken breast to room temperature. Cut each into half horizontally to make two steaks.
- Mix all the ingredients for the marinade. Place chicken breast in a bowl and pour over marinade. Mix to coat well and set aside to marinate for 2 hours or more.
- Heat a grill pan on high heat. Spray olive oil and place chicken on pan. Cook for 3-4 minutes on each side
- Mix ingredients for the sauce. Toast buns. Assemble burgers by spreading sauce on bottom, layering with lettuce, chicken, tomato and onion. Finish by spreading more sauce over the top of the bun.
*tip add grilled halloumi or avocado for extra toppings