These are truly great oven fries! They are a combination of a few different recipes I've tried. The trick is to soak them in hot water to wash off some of the starch, which makes the fries get a crispy outside.
4 small/medium russet potatoes
2 T. olive oil
Kosher salt (preferred, but table salt is okay)
Peel potatoes. Cut into fries - try to keep them roughly the same size.
Preheat oven to 425. While the oven is preheating, soak the potatoes in the hottest tap water possible. Stir them around a bit.
When the oven reaches 425, drain the potatoes and blot them dry with a paper towel. Toss them with olive oil.
Put the fries on a baking pan in one layer. Sprinkle with salt.
Bake for 20 minutes and turn with spatula. Bake 10-20 more minutes, until golden brown.