Step 1Preheat the oven to 175 °C/ 350 °F (fan assisted), or 195 °C/ 380 °F (conventional). Wash and dry the eggplants and place them on a baking sheet. Do not cut or pierce them. Place them in the oven and cook for 45-60 minutes. When done, the eggplants should be soft. An hour of cooking should be enough but if needed, cook for longer.