Mince the garlic, ginger, and dried shiitake mushrooms.

Beat the egg and add the minced garlic, ginger, shiitake mushrooms, water, sake, soy sauce, sugar, salt, pepper, and five spice powder.

Add the minced pork to the egg mixture and mix with clean hands until fully combined and sticky.

Add the vegetables and mix. Add the sesame oil last and mix again.

Bring a pot of water to a boil and add the dumplings. When the water returns to a boil after adding the dumplings, add another cup of water. Repeat this step three times. Make sure the dumplings are cooked through, then they're done!