Combine the first 4 ingredients in a deep bowl then add chicken, toss and let it marinade for about an hour.*
Heat your skillet on high, add 2 Tablespoons oil leaving the other two, remove chicken from the marinade and add to the skillet. Cook on both sides until lightly browned.
Take the chicken out on another plate and set aside.
Add the remaining two tablespoons of oil and stir in the pepper and zucchini, stir for a minute then add the chili peppers, green onions, garlic and peanuts.
Stir everything well for 3 minutes until everything is nicely caramelized.
While the veggies are caramelizing, in a separate bowl mix the sauce ingredients well.
Pour the sauce over the veggies and mix. When it is nicely bubbling and thickened add the chicken back to the pot stirring everything together leaving them to cook and get to know each other for another couple of minutes.
Remove from heat and serve immediately with rice or quinoa.