Mixed Vegetable Slaw with Miso Dressing

Name: Mixed Vegetable Slaw with Miso Dressing
Ingredients: 2 tablespoons grapeseed or other neutral oil; 2 tablespoons unseasoned rice vinegar; 1 tablespoon mirin (sweet Japanese rice wine); 1 tablespoon red or white miso (fermented soybean paste); 1 kohlrabi, peeled, cut into matchstick-size pieces; 1 apple, halved, cored, cut into matchstick-size pieces; 1 small celery root (celeriac), peeled, cut into matchstick-size pieces; 1/2 fennel bulb, cut into matchstick-size pieces; 1/4 cup chopped fresh chives; 1/2 red Fresno chile, seeded, thinly sliced