No, it is not recommended to cook in an electric pressure cooker without any liquid, such as water or broth. The primary function of a pressure cooker is to utilize steam pressure to cook food quickly and efficiently. Without liquid, there would be no source of steam, and the food may not cook properly. Additionally, the presence of liquid helps to create the necessary steam and pressure inside the cooker, which is crucial for the cooking process.
Cooking without liquid in a pressure cooker can lead to overheating, scorching, or even damaging the appliance. It is important to always follow the manufacturer's instructions and recipes when using an electric pressure cooker to ensure safe and successful cooking results.