1. Peel and slice potatoes
2. Put it in the pot and steam until the chopsticks penetrate easily
3. Take out the pressed mud
4. Add the butter while it is hot and mix well
5. Add salt and black pepper
6. Stir well
7. Put it in a piping bag
8. Squeeze the mashed potatoes into cookie shapes and bake them in the middle layer of the preheated 180 degree oven for about 18 minutes.
