Why is the moon cake I made very hard, not back to the oil it, how can I soften more

Control the ratio, water and powder ratio of 1:1. skin and filling ratio of 1:1. the following specific method for reference, first of all, to prepare materials: 200 grams of iced moon cake powder, 200 grams of boiling water, coconut filling moderate.

1, start a pot and pour 200 grams of water to boil.

2, when the water boils, turn off the heat and pour in 200 grams of iced moon cake powder, stirring into a flocculent.

3, not hot, knead into a smooth dough.

4: Divide the dough into equal portions.

5: Take out the coconut filling and knead it into equal small balls.

6: Take out the small dosage and flatten it, put coconut filling on it and wrap it up.

7: After wrapping, mold and press out the flower shape.

8, finished.