1) Preheat oven to 450 degrees F.
2) Peel and cut potatoes in half lengthwise then cut into 1/2-inch thick fries or *use pre-cut sweet potatoes sold at some grocery stores.
3) Toss potatoes with oil, salt and garlic or garlic powder in large mixing bowl until thoroughly coated.
4) Spread fries in a single layer on baking sheet lined with aluminum foil. Bake for 30 to 35 minutes, turning once to ensure even cooking. Remove from oven and serve hot.