The method of mashed potatoes is as follows:

Put the potatoes in cold water and cook them with the skin on. I cooked them for 30 minutes. They can be easily pierced with chopsticks.

Use a spoon to mash the potatoes into a fine mesh.

Pour the mashed potatoes into a non-stick pan, add enough cold butter (cut into small cubes) just taken out of the refrigerator, and heat over low heat.

While stirring constantly with a spatula, heat over low heat until the butter is completely absorbed. Pour in the boiled milk and continue stirring. Grind in a little white pepper and mix well.

Finally add a little chopped chives, and the delicious mashed potatoes are ready.