In a bowl, mix together the sugar and milk until the sugar is dissolved. (See Note 1)
Add a pinch of salt and the ginger juice and give it a whisk.
Pour in the egg whites and beat them into the mixture until smooth.
Pour your mixture through a sieve, equally distributing them between 2 bowls or ramekins.
Cover the bowls/ramekins with aluminum foil and steam them for 10 minutes.
After 10 minutes, turn off the fire and allow the custards to steam for another 10 minutes without fire.
Serve hot or chilled. Enjoy!