Place oil in a frying pan to 3 inches. Heat up on high heat to about 350℉.
While the oil heats up, rinse plantains thoroughly and peel. Peel a plantain by slicing the skin along the length of its ridges. Don't slice in too deeply that you cut the flesh. Once you slice the skin, use your hand to remove the skin from the flesh easily, then cut the plantain diagonally into about half-inch thick slices.
Reduce the heat to medium then gently place plantain slices in the oil one after another. Do not overcrowd the pan (I fried my plantains in 2 batches).
Let the plantains cook for a few minutes until golden then flip them to the other side and let them cook until golden. Remove from oil and place on paper towels to absorb excess oil. Repeat process with the rest of the plantains.
Sprinkle hot plantains with a touch of salt if desired.
Notes
Seasoning Variations: For a savory bite, season the fried plantains with a mix of onion powder, garlic powder, and basil. For more sweetness, sprinkle some brown sugar on the plantains.