In a bowl, whisk together soy sauce, honey, ketchup, garlic, rice vinegar, sesame oil, salt, and pepper.
Add thinly sliced chicken to the Instant Pot or Pressure Cooker. Brown the chicken and pour the sauce over.
Cook on high pressure for 10 minutes (Instant Pot) and let the steam release naturally.
Optional: Stir in cornstarch slurry and simmer to thicken.
Serve with rice or steamed broccoli. Garnish with sesame seeds or green onions.