Start by cutting off both ends of the plantains.
Make a shallow slit along the length of each plantain skin.
Carefully peel off the skin, being cautious not to cut into the flesh.
Slice the plantains into very thin rounds using a sharp knife or a mandoline slicer. Aim for uniform thickness to ensure even cooking.
In a large, heavy-bottomed skillet or deep fryer, pour in enough vegetable oil to submerge the plantain slices. The oil should be about 2 inches deep.
Heat the oil over medium-high heat until it reaches 350°F (175°C). You can test the oil by dropping in a small piece of plantain; it should sizzle immediately.
Carefully add a handful of plantain slices to the hot oil. Avoid overcrowding the pan to ensure they cook evenly.
Fry the plantains for about 2-3 minutes on each side, or until they turn a golden yellow color and become crisp.
Use a slotted spoon or tongs to remove the plantain chips from the oil and transfer them to a paper towel-lined plate to drain excess oil.
While the chips are still hot, sprinkle them with salt to taste. Toss gently to ensure even coating.
Allow the chips to cool slightly before serving.