1/4 cup vegetable oil (I have also used olive oil)
1 (1 oz) packet dry Ranch dressing mix
Preheat oven to 450 degrees. Place potatoes in a resealable plastic bag and add oil. Toss to coat all the potatoes in the oil and then add the dry salad dressing mix in the bag. Toss once again to coat all the potatoes in dressing mix until well coated. Bake on a baking sheet covered with foil for 35 minutes or until potatoes are brown and crisp.