Heat a saucepan.
Pour-in the soy sauce, water, and rice wine. Stir.
Gradually add the white and brown sugars. Stir.
Add the garlic and ginger. Stir and then cook until the liquid starts boiling.
Turn the heat off. Stir to dissolve the sugar.
Let the mixture pass through a strainer to trap the garlic and ginger.
Let cool. Serve as a sauce or use as an ingredient to cook your favorite teriyaki dish.
Share and enjoy!