1. Banana slices
2. Put it in a fresh-keeping bag and put it in the refrigerator overnight
3. Put the frozen banana slices into the food grinder
4. Beat into mud, repeat several times, stop in the middle to scrape off the wall of the cup and continue to beat
5. Until it becomes a fine mud
6. Then put it in the crisper and freeze
7. When you eat it, just scrape it with a spoon. The taste is the same as ice cream.
