Yes, it is possible to cook a potato in a microwave oven without adding water or oil. The potato's natural moisture and the heat generated by the microwave will be sufficient to cook the potato. However, keep in mind that the cooking time and results may vary depending on the size and type of potato, as well as the power of your microwave.
Here's a simple method to cook a potato in the microwave:
Wash the potato thoroughly under running water and pat it dry with a paper towel.
Pierce the potato with a fork or a knife in a few places. This helps steam escape during cooking and prevents the potato from bursting.
Place the potato on a microwave-safe plate or on a microwave-safe paper towel to absorb any excess moisture.
Cook the potato in the microwave. Start by microwaving it for about 3-4 minutes on high power, then turn it over and microwave for an additional 3-4 minutes. The exact cooking time will depend on the size and type of potato, as well as your microwave's power. Check the potato's doneness by inserting a fork or a knife into the center. If it goes in easily, the potato is cooked.
If the potato is not fully cooked, you can continue microwaving it in one-minute increments until it reaches the desired level of tenderness.
Always exercise caution when handling the hot potato, as it will be very hot after microwaving. Use oven mitts or a towel to protect your hands. Additionally, the skin of the microwave-cooked potato might not be as crispy as when it's baked in an oven, but it will still be soft and cooked throughout.