If there is any Chinese grocery store in your area, you can go buy some mixed seasonings. They are usually packaged with several small bags of seasoning in a single plastic bag. The small bag is made of paper that is similar to a tea bag.
These seasonings are used to cook anything from toufu, chicken, pork, or eggs. You boil the eggs first, after they are ready, you remove the shells, then boil the eggs together with a single seasoning bag again, after the water boils, turn to lower heat to slowly boil it, long enough until the egg starts to turn slightly brown. Usually takes half an hour or so for chicken eggs, shorter for quail eggs.
Trust me, extremely tasty! People in China eat chicken eggs made this way all the time, especially as breakfast or snack. I don't recall how many I had eaten in college. Some of the Chinese restaurant or super market food court here in US might even offer these.