Ingredients
3 pounds baby bok choy, trimmed and thinly sliced lengthwise
1/3 cup unseasoned rice vinegar
1 tablespoon toasted sesame oil
1 tablespoon safflower oil
2 chile peppers, such as Fresno or serrano, thinly sliced into rounds, ribs and seeds removed for less heat if desired
Coarse salt
Preparation
Toss together bok choy, vinegar, both oils, and chiles in a large bowl. Season with salt. Let stand until bok choy collapses to half its volume (it will darken slightly), at least 20 minutes. Toss again before serving.