Line a baking sheet with a paper towel; set aside.
In a large skillet, heat 1 tablespoon of oil and cook the onion and peppers for 2-3 minutes. Add the garlic and cook 1 minute more. Season with salt and pepper to taste. Remove from heat and set aside.
1 medium onion, 1 red chili, 1 green chili, kosher salt and black pepper to taste, 2 cloves fresh garlic
In a bowl, combine the dry ingredients.
½ cup corn starch, ¾ tablespoon kosher salt, 1 tablespoon black pepper, 1 tablespoon Chinese five spice
Toss the chicken in the dry ingredients to coat.
1½- 2 lbs boneless skinless chicken thighs
Add the oil to a large frying pan over high heat until hot.
1 cup vegetable oil
Carefully add the chicken to the pan one piece at a time. Fry until golden brown turning occasionally, about 5-7 minutes. Do not crowd the pan. You will most likely need to cook the chicken in 2 batches.
Place the cooked chicken onto the prepared pan to get rid of the excess oil.
Add the cooked chicken to the skillet with the onion mixture. Add the green onions and toss to mix everything.
3 green onions (also called green onions or scallions)