Step 1

Cut the scallions crosswise into about 4-inch lengths. Thinly slice each piece lengthwise.

Step 2

Soak the scallions in cold water for about 10 minutes. Drain well.

Step 3

Option 1: Add the gochugaru, sesame oil, and sesame seeds and toss well.

Step 4

Option 2: Right before serving, add the soy sauce, vinegar, and sugar to Option 1 and toss well.