The preparation method and steps of Xiancao powder are as follows:

1, first pour the black bean jelly, then pour the water into the basin and stir until there are no powder particles.

2. Then add water to the pot, add sugar and boil.

3. Add black bean jelly slurry, stir while cooking, and turn off the fire when boiling.

4. Pour it into a container and let it cool thoroughly to be solidified. After cooling thoroughly, demould it and cut it into small squares.