Scrub potatoes and cut into long strips, about 1/2-inch wide. Drop into ice water, cover and chill 1 to 2 hours in refrigerator. Remove strips from water and dry thoroughly.
Place strips and oil in deep bowl and toss until all potatoes have a light coating of oil. Preheat oven to 475°.
Spread fries in single layer in shallow baking pan. Place in oven 30 to 35 minutes. Stir fries occasionally to brown on all sides.
Variations: Flavor fries with any salt-free seasoning such as garlic powder, lemon-pepper seasoning, sesame seeds, cumin or chili powder. Or, use your favorite freshly ground herbs.