Step one, pour cold water into the pot, with more water. Then wash the potatoes and put them in the pot. Boil on high heat until the water boils, then turn to medium heat and continue cooking for about 3 minutes.

step two, take out the cooked potatoes, stir them with cold water, and then remove the skins. It is more convenient to peel off the potato skin with cold water. Then grind the molted potatoes into mashed potatoes. Then boil the whole milk.

third step, put the mashed potatoes into a non-stick pan and heat them with slow fire. Remember to stir the mashed potatoes while heating, so as to evaporate the residual water in the mashed potatoes. This process lasts for 5 minutes.

step four, take out a proper amount of butter, and set aside an amount the size of a fingernail for later use. Then add it to the mashed potatoes and stir. Remember not to worry, stir slowly until the butter and mashed potatoes are completely mixed.

step five, add the boiled milk and continue to stir until the milk is completely mixed with the mashed potatoes. Then sprinkle some salt and white pepper to taste.

step 6, put the mashed potatoes into a bowl, melt a small piece of butter and brush it on the surface of the mashed potatoes. In this way, a delicious mashed potato is ready.