Step two, take out the cooked potatoes, stir them with cold water, and then peel them. It is more convenient to peel potatoes with cold water. Then grind the molted potatoes into mashed potatoes. Then boil the whole milk.
Step 3, 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 4, take out a proper amount of butter and leave the amount of 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 5, add the boiled milk and continue stirring until the milk and mashed potatoes are completely mixed. Then sprinkle some salt and white pepper to taste.
Step six, put the mashed potatoes into a bowl, melt a small piece of butter, and then brush it on the surface of the mashed potatoes. In this way, a delicious mashed potato is ready.