Using the ratio of 3:2:1 (soy sauce:mirin:sugar), it's easy to make 3 times the amount. (See image)
Add all the ingredients to a small pot, dissolve the sugar well, and reduce the sauce over low heat, stirring occasionally. Adjust the heat to make sure that it doesn't boil too rapidly.
This is up to your liking, but simmering it until it reduces by half is good. Remove any scum that develops.
Because the sauce thickens when cooled, when placing it in a storage container, pour it into the container when hot, allow to cool, and then place in the fridge. Be careful not to burn yourself.
Mix with pork cooked in a frying pan, and then place over rice You'll be able to enjoy a delicious pork rice bowl in no time.
Pouring it over yakitori or hamburgers will make them teriyaki-style.
Story Behind this Recipe
The pork rice bowl sauce that my mom taught me how to make is really delicious, but the method is very traditional. Because I always tend to cut corners, I tried making this using just 3 basic ingredients.
This is up to you, however....when making a thicker sauce, adjust the heat to make sure that it doesn't reduce too much and burn. If you make a lot in advance and store it in a container in the fridge, all you have to do is take it out whenever you want some deliciously seasoned meat.