Step 1

Remove dark green tops from scallions and thinly slice; set aside. Blend scallion bulbs, kimchi, kimchi juice, vinegar, Sriracha, fish sauce, and sesame oil in a blender until smooth. With motor running, very slowly stream in vegetable oil; blend until dressing is thick and airy. Set aside.

Step 2

Tear off leaves from cabbage until you get down to the crunchy white part. Rip outer leaves into 2" pieces. Thinly slice core crosswise until you have about 6 cups; reserve remaining cabbage for another use. Toss in a large bowl with daikon, carrots, and reserved scallion tops. Season with salt; pour reserved dressing over. Toss to coat, transfer to a platter, and top with sesame seeds and cilantro.