>>7293661
If you're baking it in the oven, they're not fries anymore, just roasted potatoes.

Just right into the oven, but they do take a long time, almost an hour for a big batch sometimes.

If you were doing them in a skillet, parboil them until they're almost done first.

Yeah parboil if you want, microwave will also do the trick. It makes them cook faster with a softer inside. Lightly shake them in a colander right before you roast them, it will increase the surface area giving you a crispy skin. Squash them slightly half way through to make them crispier. You could add some rosemary too, and a little bit of acid i.e. vinegar or lemon gives them a nice texture. The thicker the fat you use, the crunchier they should be, so you could consider butter.

File: 2014-07-04 17.59.24.jpg (2 MB, 3264x2448) Image search: [Google]

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>>7293661
The key to crispiness is to cut up the potatoes and parboil them, drain, then give them a good shaking to rough up the outsides. Then put in your peppers and onions and bake