Wash your potato and prick it with a fork several times.
Brush the potato with olive oil and place it in a paper bag. If you don't have a paper bag, wrap your potato in a paper towel or even plastic wrap.
Place your potato in the microwave and cook it at 100% power for 5-6 minutes. Then, carefully remove the potato and give it a squeeze to check for doneness.
Return to the microwave in 1-minute intervals until cooked to your desired tenderness. Typically a medium-sized potato takes about 8 minutes. However, this can vary based on your microwave and how many potatoes you are cooking at once.
Once your potato is finished, cut in half lengthwise and top with butter, cheese, salt, whatever toppings you desire and enjoy.
Notes
Depending on the size and power of your microwave you can cook up to 4 medium-sized russet potatoes at once. A great time saver for dinner.