the good thing about this dish is you can easily decide how much stuff you need whether you're cooking a lonely dinner or entertaining a bunch of friends who suddenly came over. and it's quick and easy too.
sooooooo... wash the potatoes well (unless your organism needs the minerals from the dirt - that happens too), but don't peel 'em. i usually get 3 or 4 potatoes of middle size for myself.
get a nice clean knife out and cut all the potatoes into 4 pieces (not round ones). leave 'em be.
now... the messy part that i like. well, the prelude to the messy part.
get a bowl big enough for you to put all the potatoes AND your hands in.
in this bowl mix some vegetable oil (or maybe some prefer olive? up to you) with red pepper, black pepper, salt, garlic powder, and whatever else your creativity would tell you to add to that. when the oil is ready, put your potatoes in there and mix 'em real well, so that every piece is covered with oil and spices.
the oven should be hot by now (dunno how many degrees - not the hottest, but somewhere in the middle, closer to the hot mark). take a baking tray, put some wax paper on it (or just spray some non-stick thingie), and get the potatoes evenly spread out on it.
bake till you think they are ready (usually takes about 20 - 25 minutes - all depends on the size of the potatoes)
enjoy! it goes really well with BBQ sause or ketchup or horseradish or once again, whatever your stomach will tell you to get.