Ingredients: 1-2 bananas, brown sugar. The darker the color, the better. It is best to use brown sugar, fruit vinegar or rice vinegar.

practice:

1. Cut the banana into 1-2 cm slices.

2. Find a jar that can be sealed and put brown sugar in it first.

3. Pour fruit vinegar (or use rice vinegar) to fill the jar.

4. Mix the fruit vinegar and brown sugar evenly.

5. Add the sliced ??banana slices.

6. Close the lid and seal it for 24 hours before eating.