Soft boil the eggs to the just-coagulated stage, and placed immediately in cold water.
Tap eggs gently all over to cover with cracks.
Add the eggs to pot filled with 1 cup soy sauce and 1 cup water (enough to cover 6 eggs), 1 slice of ginger, and half teaspoon of five-spice powder. Simmer over low heat for 25 to 30 minutes, then let steep for another 1/2 hour.
Crack open the eggs and peel them, then slice into wedges.