Wash the cabbage thoroughly and cut it into bite-sized pieces.
Soak the cabbage in coarse salt for about 30 minutes.
Julienne the onion, carrot, and scallions.
Mix minced garlic, minced ginger, red pepper powder, salted shrimp, and sugar to make the seasoning sauce.
Add the seasoning sauce to the salted cabbage and vegetables, then mix well.
Store in a container and ferment for at least one day.