01 - Preheat oven to 425°F. Line a large baking sheet with parchment paper.
02 - Wash and scrub potatoes. Cut into 1/4-inch thick fries, leaving skin on for texture.
03 - Soak cut potatoes in cold water for 30 minutes to remove excess starch. Drain and pat thoroughly dry with paper towels.
04 - Toss dried fries with olive oil and salt in a large bowl until evenly coated.
05 - Spread fries in single layer on prepared baking sheet. Bake for 30-35 minutes, flipping halfway through, until golden and crisp.
06 - Remove from oven. Immediately drizzle with truffle oil and toss gently to coat.
07 - Transfer to serving platter. Sprinkle with grated Parmesan, chopped parsley, and freshly ground black pepper. Serve hot.