In a bowl, season the glutinous rice with light soy sauce and white pepper. Set aside.
In a small bowl, combine dark soy sauce, black rice vinegar, brown sugar, and ginger. Set aside.
Meanwhile, add oil in a heated pan or wok.
Fry the tofu until lightly golden.
Add the shiitake mushrooms and chickpeas; cooked for another 3 minutes on medium-high heat.
Sprinkle the Chinese five-spice powder and mix until thoroughly combined.
Pour in the prepared sauce.
Let it simmer until reduced and thickened.
Transfer to a bowl to cool slightly.
To assemble, form the banana leaf into a cone shape.
Place a tablespoon of glutinous rice at the bottom, followed by the filling, and then top it with the rice to make it level.
Fold the ends of the leaf towards the center.
Tie with a butcher’s twine but not too tight, just enough to hold the shape of the dumplings.
Cook the dumplings in salted boiling water for 30 minutes.
Hang the dumplings to dry and cool before serving.