1. Grate the peeled potatoes and immerse them directly in water to prevent oxidation.

2. In a bowl, beat the eggs and season.

3. Squeeze the grated potatoes in your hands and add them to the egg mixture, then mix.

4. Melt the butter in the pan and pour in the oil.

5. Pour the mixture into the pan, press a little and cook over low heat until golden brown.

6. Flip like a pancake and cook the other side.

Serve this crispy pancake as a side dish.