Preheat oven to 375°. On lightly greased baking sheet or 15 1/2? x 10 1/2? x 1? jelly roll pan, spread potatoes in single layer and brush lightly with 1 teaspoon olive oil. Bake uncovered, 5 minutes. Brush with another teaspoon of the oil and bake another 5 minutes. Brush one more time using remaining 1/2 teaspoon oil and continue baking another 10 minutes or until potatoes are crisp, golden and tender. Before serving, sprinkle potatoes with vinegar and, if desired, salt.
Guilt-free fries without the fat.