Preheat your oven or air fryer according to the manufacturer's instructions. Typically, a temperature of 425°F (220°C) works well.
To prevent sticking line a baking sheet with parchment paper or use aluminum foil.
After that on a prepared baking sheet spread the frozen fries in a single layer.
Drizzle a small amount of cooking oil over the fries. Use enough oil to lightly coat them, but not so much that they become greasy.
Sprinkle salt evenly over the fries, adjusting the amount to suit your taste.
If desired, add additional seasonings of your choice, such as garlic powder, paprika, or chili powder. This step adds extra flavor to the fries.
Place the baking sheet in the preheated oven or air fryer and cook according to the package instructions, usually around 15-20 minutes. Ensure the browning of fries and keep flipping Flip the fries halfway through half cooking time.
Once the fries are golden brown and crispy, remove them from the oven or air fryer using a spatula or tongs.
After cooling serve the fries along your favorite dish.