1. Peel and wash sweet potatoes
2. Cut into small pieces and cook in water and turn off the heat
3. Strain off the water and add butter
4. Add salt and black pepper, and pour in the hot milk
5. Shovel into mud
6. Stir evenly after squashing, no need to squeeze very finely, a bit chewy.
7. Out of the pot
Tips:1. Add hot milk to taste better.
2. There is no need to press very finely, leave some chewing head
