1. Preparation: 

2 potatoes (cut into thick strips), 1 spoon of truffle oil, a little truffle salt (or regular salt + truffle sauce), cooking oil (for frying), parmesan cheese powder (optional), a little chopped parsley.

2. Preparing the potatoes: 

Soak the potato strips in cold water for 10 minutes, then drain and dry.

3. Re-frying for crispiness: 

First frying: Heat the oil to 150℃, add the potato strips and fry for 4-5 minutes until the surface is slightly hard and light yellow. Remove and drain the oil; Second frying: Raise the oil temperature to 180℃, add the potato strips and re-fry for 1-2 minutes until golden and crispy. Remove and drain.

4. Seasoning for flavor: 

While still hot, place in a large bowl, drizzle with truffle oil, sprinkle with truffle salt (or apply a little truffle sauce and mix well), you can sprinkle parmesan cheese powder and chopped parsley to enhance the flavor, and mix well before serving.