Peel sweet potato and using a vegetable peeler shave long strips from potato.
4
Using a deep 10-inch heavy skillet,heat oil over moderately high heat until a deep-fat thermometer registers 375°F. Fry potato strips in 3 batches, stirring frequently, until lightly browned and bubbling stops, about 1 minute.
5
Transfer chips as fried with a slotted spoon to paper towels to drain and sprinkle with lime salt.