Place the quail eggs in a small saucepan.
Cover them with cold water and add the vinegar and stir.
Bring the water to a boil over low heat.
When the water begins boiling, set a timer for 4 minutes.
After 4 minutes, turn off the heat and let the eggs sit in the hot water another 2 minutes. (Set a timer!)
In the meantime, add about 10 ice cubes to a bowl and cover them with cool water to prepare the ice water bath. Set it aside.
After 2 minutes, remove the eggs from the hot water and shock them the ice water bath to stop the cooking process.
Once cooled, peel gently.