1. A pound of yam beans
2. Add a little flour to wash so it will be very clean
3. Put the washed yam beans in a steamer and turn off the heat for ten minutes after the water is boiled to dry
4. Put two spoons of water and two spoons of sugar into the wok to cook the porridge on low heat
5. Boil into small bubbles, add a little vinegar, stir evenly, turn off the heat and put in the dried yam beans
6. Continue to fry like this
7. When the yam bean has frosting on the surface, it is almost the same.
8. Stir-fry until the yam bean cools out, put it in a container, and you can find a friend as a snack anytime you want to eat
