1. Peel potatoes, wash and cut into pieces.
There is one third of the water in the jar.
3. After the water is boiled, add the potato pieces.
4. Cook the potatoes until they change color, or turn off the heat after they are easily punctured with a toothpick.
5. Drain the water and put it in a bowl
6. Crush the potato pieces with a spoon.
7. Press the back of the spoon again and it will become mashed potatoes.
8. You can add milk, appropriate amount of sugar and salt to taste and eat directly.