Set the air fryer to the "Air Crisp" function if yours has that, and set the temperature to 400°F/200°C and set the timer to 20 minutes. Press “Start” to preheat the unit.

While the air fryer preheats, pat the potato wedges dry with a paper towel. Drizzle the wedges with one tablespoon of black truffle oil, and toss to evenly coat in the oil. Generously season with sea salt and set the potatoes aside.

When the air fryer is ready, add the seasoned potato wedges to the basket and spread them into an even layer without overcrowding. After 10 minutes, shake or turn the potato wedges and continue to cook until the time is complete.

Transfer the potato wedges to a serving dish.

Drizzle with the remaining truffle oil and additional salt to taste. Top with freshly grated Parmesan and serve immediately.