How long does it take baked potatoes to cook?
The oven method is the best, but it takes ages and uses a lot of energy. Microwaving them is quick and cheap, but does nothing for the skin, which is, IMHO, the best bit. Try this combination method. Turn the oven on to 180C. Stab the potato all over with a sharp knife and wrap in a sheet of kitchen paper. Zap at full power for 5 minutes. Transfer the potato (NB. it will be hot) to a metal tray. Remove the paper. Use the paper to wipe it with a little oil. Put the tray in the oven and cook for 10 to 15 minutes until the skin is crispy. The microwave cooks it from the inside out and the oil in the oven effectively fries the skin. As above, the oven only method is best, but this gives a reasonable result in a reasonable time and at a reasonable cost.