Wash the garlic chives thoroughly, trim the ends, and cut them into bite-sized lengths.

Place the chives in a large bowl and add the minced garlic, gochugaru, soy sauce, fish sauce, sugar, and vinegar, then toss everything together evenly.
Tip.Adding just about 1 T of sugar keeps the sweetness in check while smoothing out any bitterness. Go easy on the vinegar too, just enough to brighten the flavor, not overpower it. Adjust the final seasoning with a pinch of seasoned salt if needed.