Potatoes are boiled in cold water with skins. I cooked them for 3 minutes, and they can be easily pierced with chopsticks.

use a spoon to press into fine mashed potatoes in a mesh screen.

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

while stirring with a spatula, heat it on low heat until the butter is completely absorbed. Pour in the boiled milk and continue to stir. Grind a little white pepper and mix well.

finally, add a little chopped chives, and the delicious mashed potatoes will be ready.