1. Steam the potatoes with the skin until chopsticks can be inserted easily. Peel and mash with a fork. Boil a boiled egg. While waiting for the potatoes to ripen, dice the sausage and egg white.
Add milk when mashing potatoes, don't put too much at a time. Let go a little and knock for a while.
3. Add the milk until the mashed potatoes feel less dry. Then add the diced sausage, diced egg and egg yolk, because the egg yolk will be broken when stirring, so it will not be diced.
4. Finally, put some pepper and a little salt and mix well. You can eat ~