Open the Ramen packages, reserve a 1/4 cup of broth and set the rest aside.
In a large bowl, combine the cooled noodles with the chopped celery, grated carrot, shredded cabbage, and thinly sliced red onion. Toss everything to combine.
Make the Dressing:
In a small bowl, whisk together the apple vinegar, sesame oil, gochujang, Japanese spice seasoning, balsamic vinegar, olive oil, and 2 tablespoons of the reserved broth from the Ramen Z.
Stir in the sesame seeds until well-mixed.
Assemble the Salad:
Pour the dressing over the salad and toss gently to coat all the ingredients evenly.
Serve:
Serve immediately for a refreshing cold dish, or refrigerate for about 30 minutes to let the flavors meld before serving.