You will need:
1: Finely chop the parsley with the capers and garlic. Add the oregano and peperoncini and chop everything together. Put the mixture in a bowl, stir in the oil, & season with salt and pepper.
2: Preheat your BBQ until smoking hot. Grill the eggplant until well marked (3-6 mins) then flip and cook for another 3 mins. Remove from grill. Do not put any oil or salt on the eggplant before grilling.
3: Dip Eggplant slices in balsamic vinegar, and place in a dish with 1/3 of the marinade spread around in the bottom.
3: Keep layering the eggplant & marinade mixture until all your slices are covered. Cover in plastic wrap and marinate at room temperature for 2-3 hours before serving. Enjoy!