Possible Clues:

• Two desserts in one
• Dessert that's fashionable in France?
• Hot-and-cold dessert
• Dessert that's both hot and cold
• Dessert with a crust and a scoop
• Dessert whose topping often melts
• Dish that's both hot and cold
• Double dessert?
• Hot-and-cold menu item
• Dessert order