Lots of fat and a quick broil or grill will give you a crispy/crucnhy finish. True, there are so many dishes that are best left to the experts in their home countries. But when you are far from home and you need your fix what can you do? I've never tried this, even though I dearly miss the Turkish and Algerian owned kebab sandwich shops in France. Maybe you could get a similar effect by cooking very thinly pounded chicken, lamb, or beef, seasoned with spices (I can give you a spice recipe, but they vary from country to country, region to region, neighbor to neighbor.) over hot coals or under the broiler?