Preheat the oven to 450 degrees F.
Cut the potatoes lengthwise into 1/4-inch thick matchsticks, and toss with the oil and 1/2 teaspoon salt. Spray a baking sheet with cooking spray. Arrange the potatoes in a single layer on the baking sheet and bake until the "fries" are tender and crisp, about 30 minutes.
Season with additional salt, to taste. Serve immediately.
2007, Ellie Krieger, All Rights Reserved