Heat the vegetable oil in a frying pan over medium-high heat, then fry the eggplants until they are lightly browned on both sides and cooked halfway through.
Repeat the same process with the potatoes and peppers. Arrange the eggplants on the bottom of your dish, then layer the potatoes on top. Add some seasoning
Mix 150 ml of water with the reserved marinade, and spread it on top of the chicken. Place the dish in oven and bake it until the chicken is nicely charred.