Learning how to bake a potato adds a simple, cheap supper to your repertoire.
Just keep in mind that the bigger the potato, the longer it will take to cook, although I will share a few methods of speeding things up. You could, of course, bake two smaller spuds rather than one large one, or use the microwave.
We talked about the different varieties back on the ways to cook potatoes page, and the best type for baking are main crop, floury ones, such as King Edwards. Pick one (or two) with a smooth side without bruises or eyes if possible. Always wash them before baking, especially if you plan to eat the skins.
Using a fork, prick the potato in a few places, to allow the steam to escape without splitting it. Pushing a metal skewer through the centre can help really large spuds to cook more quickly.