Wash and peel your potatoes, and cut into french fries.

Place the fries into a cast iron skillet, making sure that they are in a single layer and not overlapping, and pour just enough oil to almost cover them completely {it may or may not be the whole cup, just go with the visual}.

Turn heat onto medium-low, and let the potatoes cook for 15-20 minutes, stirring occasionally to keep them from sticking together. The fries are ready when they are golden brown and crisp on the outside.

Remove the fries from the oil, and place on a paper towel to absorb excess oil. Toss with salt and pepper, or any other desired seasonings, and serve immediately.