One big bubble? LOL
I think you have a great naan recipe, and should try to cook them in a skillet, or on an open flame.
Are you trying to use this dough the same day you make it? If so, your result will be "breadier" than if you let it sit for several hours, or overnight in the fridge. Increasing the oil content will help make it crispier without making it too dry as well.
The local weather (in the kitchen), air quality, PH of your...