The eggplants can be roasted directly over the fire of a gas stove, on the grill, in the oven or in an air fryer. Boiling or steaming is NOT recommended to avoid water being soaked up by the flesh. You want your eggplants cooked through with the excess moisture removed.An air fryer was used here. The eggplants were slit from top to bottom to create steam vents and roasted at 200C for 25 minutes.The "cook time" of 15 minutes indicated below excludes the roasting time of the eggplants.