Heat the vegetable oil in a frying pan over medium heat until hot.

Add the plantain slices to the hot oil and fry for about 3-4 minutes on each side, until they are golden and slightly soft.

Remove the fried plantains from the oil and drain on paper towels.

Using a heavy object, flatten each fried plantain slice to about 1/2 inch thick.

Return the flattened plantains to the hot oil and fry again for 2-3 minutes on each side until they are crispy and golden brown.

Remove from oil, drain on paper towels, and sprinkle with salt.