I have limited cooking apparatus.
What are you using? an old chip pan? A regular pan with oil in?
I used to have a fryer, £30 or so, did excellent chips

- oil @ 110 or so (low), chips in for about 6 min, until you can see them becoming lightly browned; don't put too many in, allow the chips to move, and keep giving them a shake.
- life the basket and turn the heat up to full;
- basket back in for a couple of minutes, until they're as brown as you want.
If you don't have one of these, use a big frying pan and shallow-fry some thin slices of potato, a bit thicker than a pound coin.