– Clean and rinse the bok choy, trim off the stems at the bottom, slice and quartered. Prepare the dressing by combining the soy sauce, sugar, apple cider vinegar, sesame oil and sesame seeds. Stir to mix well, set aside.
– Toss the bok choy with the olive oil and black pepper. Arrange them on a baking sheet lined with parchment paper. Cover the bok choy with aluminum foil to avoid the leafy leaves from burning. You may also turn the bok choy with the inside stems down to prevent burnt leaves.