How to Make It
In each of 2 very large bowls, layer the cabbage with the salt. Let stand for 45 minutes. Toss the cabbage well and let stand for 45 minutes longer.
Fill a sink with cold water. Swirl the cabbage in it to remove the salt; drain and repeat. Drain the cabbage well, lightly pat dry with paper towels and transfer to a very large bowl.
In a mini food processor, combine the garlic, onion, ginger and sugar and puree. Add the fish sauce and process until blended.
Add the daikon and scallions to the cabbage and toss. Add the garlic mixture and the red pepper powder and toss thoroughly. Pack the cabbage into three 1-quart jars. Press plastic wrap on the surface of the kimchi and put the caps on loosely. Let stand at room temperature for 3 days, until the cabbage is tangy and bubbling. Store in the refrigerator.
Korean red pepper paste and powder are available online at hmart.com.