For the soup, add the hot water, gelatin powder, soy sauce, and chicken stock to a medium bowl. Stir to combine. Pour into a shallow dish and chill in the refrigerator for 1 hour, until set.
2. Step
When set, fluff and break up the jellied soup with a fork.
3. Step
For the filling, combine the ground pork, green onion, mushrooms, ginger, garlic, sesame oil, and sake in a medium bowl. Mix with your hands until combined.
4. Step
Scoop a spoonful of filling onto the middle of a dumpling wrapper. Add a spoonful of soup jelly on top.
5. Step
Fold up the edges of the dumpling and pinch everything in the center. Repeat with the remaining dumpling wrappers and filling.
6. Step
Put a plate in a medium pan pan, and lay a piece of parchment paper over it.
7. Step
Set the dumplings on the plate and pour 150 milliliters (⅔ cup) water under the plate. Cover and steam for 5 minutes over medium heat.
