Wash and stem the eggplants. Make a lengthwise slit on one side of each eggplant. To remove the bitterness from the eggplants, bring 8 cups/1.9l water and 1 teaspoon salt to a boil in a non-reactive medium-sized pot. Add the eggplants and bring back to a boil. Immediately drain. Set aside.
In the same pot, bring the water, sugar, and ginger to a boil over mediu