Cover the chicken with baking paper and pound them using a rolling pin. We're aiming to decrease the thickness of the thickest side of the breasts.
Cover the breasts thoroughly with the marinade, on the top and bottom. Let marinade for 1 hour.
Lay the chicken breasts one next to the other on a baking dish.
Bake in a preheated oven at 200°F/400°F for 25-30 minutes or until the temperature at the centre of the breasts reaches 73°C/164°F. 25 minutes works well for average-sized breasts and 30 is perfect for thick and large breasts.
Remove from the oven and let rest for 10 minutes before serving with the juices from the dish.