1 (26-ounce) bag frozen extra-crispy fast food fries
1 (1-ounce) package ranch dressing mix, divided
1/2 cup ketchup
1/2 cup mayonnaise
Preheat oven to 450 degrees. Spray a rimmed baking sheet with non-stick cooking spray.
Place fries in a single layer on prepared baking sheet. Sprinkle evenly with 1 tablespoon ranch dressing mix. Bake for 11 to 15 minutes, or until fries are lightly browned and crispy.
In a small bowl, combine ketchup, mayonnaise, and remaining ranch dressing mix. Serve with hot fries.