01 - Using a mandoline slicer or sharp chef's knife, cut potatoes into uniform rounds approximately 1/16 to 1/8 inch thick for even cooking.
02 - Rinse potato slices thoroughly in cold water until water runs clear to eliminate surface starch. Drain completely and pat dry with clean kitchen towels or paper towels—moisture prevents proper crisping.
03 - Pour oil into a deep, heavy-bottomed pan or countertop deep fryer. Heat to 340°F, maintaining consistent temperature throughout frying for optimal texture.
04 - Carefully add potato slices in small batches to prevent overcrowding and temperature drop. Fry 2 to 3 minutes, turning occasionally, until golden brown with a rigid, crisp texture.
05 - Transfer chips immediately using a slotted spoon to a paper towel-lined tray. Season promptly with sea salt while hot—add pepper if desired. Allow cooling completely to achieve maximum crispness.