Eggplant is one of the veggies that is not taken by everyone. Some who hate it because of its slimy texture or some because its allergic to them. While the latter has no choice but to avoid, whereas the former can be made to taste it by cooking the eggplants in a way, that it is not seen. :) :). Many in my family fall in the former group and they eat only this thogayal/Dip. Easy to make and goes with plain rice and as well as chapatis.
Coming to the recipe, this needs patience and tolerance. Yeah you would make a mess in your kitchen when doing this, esp in the stove top. Yet the dish is worth the pain in the end.