I will teach you how to make a refreshing onion sauce. Eat to your heart's content!
I recreated the sauce that I used to cook when I worked at a restaurant. The good thing about this is that you can make this with what you would already have at home.
The key is in reducing the sauce. You could also mince the garlic, but it would hold its shape even if you cook it through, giving the sauce a rougher texture.
Enjoy Japanese food around the world.