In a bowl, whisk together chicken broth, soy sauce, cornstarch, and oil until smooth. Add chicken and toss to coat well. Let marinate for 20 minutes.
Bring a pot of water to a gentle boil. Add the chicken using a slotted spoon, discard remaining marinade. Cook for 2-3 minutes, just until the chicken turns opaque and tender. Remove the chicken and set aside to drain.
In a large pot, heat oil over medium heat. Add ginger, garlic, and half the green onions. Cook 1-2 minutes until fragrant.
Add broth, soy sauce, fish sauce, sriracha, vinegar, and white pepper. Bring to a gentle boil.
Add noodles and carrots. Cook until noodles are tender. Stir in chili crisp.
Add velveted chicken and bok choy. Simmer 3-4 minutes until everything is heated through and the bok choy is tender.
Stir in cilantro, remaining green onions, jalapeño, and sesame oil. You can also garnish with extra chili crisp for spice (optional). Serve hot.