Mix together all the ingredients for the sauce and set aside.
Heat the pan over high heat. Add oil, onion, chili pepper, and garlic. Stirring continuously.
When the garlic is just starting to brown, add chicken. Cook, stirring, for 5 minutes or until it starts to brown.
Add peppers, Bok choy, cucumber and all the sauce. Cook, stirring for 2 minutes or until thickened.
Remove from heat and add basil and cilantro. Stir to combine.
Serve immediately garnished with fresh, cilantro and any of the other garnish options.